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Site Title: Companion Website for Marieb's Human Anatomy

and Physiology, 7e

Book's Title: Human Anatomy & Physiology, 7/e

Book's Author: Marieb

Location on Site: 4: Tissue: The Living Fabric > Art Labeling Quiz

Date/TimeSubmitted:

October 1, 2014 at 1:20 PM (UTC/GMT)

Summary of Results

100% Correct of 3 questions:

14 correct: 100%

0 incorrect: 0%

3 questions contain multiple pairs, scored for a total of 14

questions. More information about scoring

1. Label the following epithelial tissue types.

Figure 4.2

Label Your Answer

1.1 Simple squamous epithelium A.

1.2 Simple columnar epithelium C.

1.3 Simple cuboidal epithelium B.

1.4 Stratified squamous epithleium E.

1.5 Pseudostratified columnar epithelium D.

2. Label the following connective tissue types.

Figure 4.9

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Label Your Answer

2.1 Areloar A.

2.2 Bone (compact) E.

2.3 Blood F.

2.4 Cartilage (hyaline) D.

2.5 Adipose B.

2.6 Dense white fibrous C.

3. Label the following membrane classes.

Figure 4.12


2 of 3 10/1/2014 9:20 AM

Label Your Answer

3.1 Mucous membrane B.

3.2 Cutaneous membrane A.

3.3 Serous membrane C.

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Your Results for "Matching Quiz" Print this page


and Physiology, 7e



Location on Site: 4: Tissue: The Living Fabric > Matching Quiz

Date/TimeSubmitted:


Summary of Results


83 correct: 100%

0 incorrect: 0%

21 questions contain multiple pairs, scored for a total of

83 questions. More information about scoring

1. Match each of the following major tissue types with its function.

Option Your Answer

1.1 Connective A. Support

1.2 Epithelium C. Covering/lining

1.3 Muscle D. Movement

1.4 Nervous B. Regulation/control

2. Match each of the following major tissue types with its description.

Option Your Answer

2.1 Epithelium

B. Avascular; associated with a basement membrane; apical and basal surfaces;

great powers of regeneration, sparse extracellular matrix, innervated.

2.2 Connective

A. Large amount of extracellular matrix; originates from mesenchyme; possesses

fibers.

2.3 Muscular D. Highly vascular; elongated cells; possess actin and myosin filaments; maypossess striations.

2.4 Nervous C. Primary cell type branches and possesses multiple cell processes extending fromthe nucleus-containing cell body; possesses two types of cells: neurons and

supportive cells called glia.

3. Match each of the following types of epithelium with its description.

Option Your Answer

3.1 Simple squamous A. Single layer of flattened scale-like cells.

3.2 Pseudostratifiedcolumnar

B. Single layer of cells that vary in height, with only the tall cells

reaching the apical surface, nuclei at different levels, may contain gobletcells and cilia.

3.3 Transitional C. Multiple layers of cells with apical cells possessing the ability tochange shape.

3.4 Stratified squamous

E. Multiple cell layers whose apical cells are flattened.

3.5 Simple columnar D. Single layer of cells that are taller than they are wide.

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4. Match each of the following epithelial tissues with a body location where it can be found.

Option Your Answer

4.1 Keratinized stratified squamous D. Skin

4.2 Transitional C. Lines the urinary bladder.

4.3 Simple squamous E. Walls of the air sacs of the lungs and lining bloodvessels.

4.4 Pseudostratified ciliated columnar

A. Upper respiratory tract

4.5 Simple cuboidal B. Walls of smallest ducts of glands and kidney tubules.

5. Match the following specialized characteristics of epithelium with the appropriate description orexample.

Option Your Answer

5.1 Regeneration D. Rapidly replace lost cells by cell division

5.2 Specialized contacts C. Desmosomes, tight junctions

5.3 Polarity B. Tissue with a free apical surface.

5.4 Supported by connective tissue A. Two laminae forming a basement membrane.

5.5 Avascular but innervated E. No blood vessels; abundant nerve endings.

6. Match each of the following exocrine glands with its structure.

Option Your Answer

6.1 Mammary glands E. Compound alveolar

6.2 Salivary glands A. Compound tubuloalveolar

6.3 Intestinal glands C. Simple tubular

6.4 Sebaceous glands D. Simple branched alveolar

6.5 Eccrine sweat glands B. Simple coiled tubular

7. Match each of the following types of connective tissue fibers with its description.

Option Your Answer

7.1 Collagenfibers

C. The strongest and most abundant fibers, they allow connective tissues to resist

tension.

7.2 Reticularfibers

B. These short branching fibers cluster into delicate networks and have the abilityto glide freely across one another whenever the network is pulled, allowing give.

7.3 Elasticfibers

A. These long, thin, branching fibers form wide networks within the extracellular

matrix and possess the ability to stretch and then return to their original length.


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8. Match each of the following cell components of connective tissue with its function.

Option Your Answer

8.1 Mast cells C. Secrete histamine

8.2 Plasma cells B. Produce antibodies

8.3 Fibroblasts D. Produce collagen, elastic and reticular fibers

8.4 Macrophages E. Are phagocytic cells that engulf foreign matter

8.5 Adipocytes A. Store fat molecules

9. Match each of the following types of connective tissue with an appropriate location.

Option Your Answer

9.1 Adipose C. Hypodermis; in mesenteries; surrounding kidneys; posteriorto eyeballs

9.2 Elastic cartilage D. Supports external ear, epiglottis

9.3 Dense regular connectivetissue

A. Ligaments, tendons, aponeuroses

9.4 Fibrocartilage E. Intervertebral discs, pubis symphysis, menisci of knee joint

9.5 Reticular connective tissue B. Bone marrow, spleen, lymph nodes

10. Match each of the following connective tissue components with its description.

Option Your Answer

10.1 Osteoblast B. Bone producing cell

10.2 Plasma C. Liquid portion of blood

10.3 Chondrocyte A. Cartilage producing cell

10.4 Extracellular matrix D. Non-living material located between the cells of a connective tissue

10.5 Reticular cell E. Type of fibroblast

11. Match each of the following types of membranes with its location.

Option Your Answer

11.1 Cutaneous membrane C. Covers the outer surface of the body

11.2 Mucous membrane(mucosa)

B. Lines the inside of hollow organs that open to the body's

exterior

11.3 Serous membrane(serosae)

A. Lines the ventral body cavity walls and covers the ventral body

cavity viscera


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12. Match each of the following body locations with its associated muscle tissue type.

Option Your Answer

12.1 Walls of hollow organs B. Smooth muscle tissue

12.2 Walls of the heart C. Cardiac muscle tissue

12.3 Attached to bones A. Skeletal muscle tissue

13. Match each of the following types of muscle tissue with its description.

Option Your Answer

13.1 Skeletal muscletissue

C. Striated; multinucleated cells; long, large, cylinder-shaped cells

13.2 Smooth muscle tissue

A. No striations; spindle-shaped cells; uninucleated cells

13.3 Cardiac muscle tissue

B. Striated; branching cells; intercalated discs; generally uninucleated

cells

14. Match each of the following types of connective tissue with a body location.

Option Your Answer

14.1 Hyaline cartilage A. Forms embryonic skeleton and covers the ends of longbones

14.2 Bone B. Skeletal system

14.3 Dense regular connective tissue

E. Primary tissue of ligaments and tendons

14.4 Blood C. Located within the cardiovascular system

14.5 Dense irregular connectivetissue

D. Primary tissue of the dermis

15. Match the following types of connective tissue with the appropriate function/description.

Option Your Answer

15.1 Connective tissueproper

C. Loose connective tissue (areolar, adipose, and reticular); dense

connective tissue (dense regular, dense irregular and elastic)

15.2 Cartilage B. Stands up to both tension and compression; tough and flexible,providing resilient rigidity

15.3 Bone tissue A. Supports and protects body structures; stores fat; synthesizes bloodcells

15.4 Blood D. Most atypical connective tissue; extracellular fibers are soluble proteinmolecules found in liquid plasma, abundant extracellular matrix


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16. Match each of the following types of membrane with its function.

Option Your Answer

16.1 Cutaneous C. Provides protection for outer surface of body

16.2 Mucous A. Provides secretions that lubricate and protect areas that open to the outside ofthe body

16.3 Serous B. Provides secretions for lubrication of organs enclosed within the body cavities

17. Match each type of muscle tissue with its function.

Option Your Answer

17.1 Skeletalmuscle

B. Allows voluntary movement to occur by changing position of bones

17.2 Smoothmuscle

C. Allows hollow organs to contract and propel materials through them

(digestive organs, reproductive organs, etc.)

17.3 Cardiacmuscle

A. Pumps a liquid connective tissue through vessels

18. Match each following type of blast cell with its function.

Option Your Answer

18.1 Fibroblast A. Produces materials in connective tissue proper

18.2 Chondroblast D. Produces extracellular matrix of cartilage

18.3 Osteoblast B. Produces extracellular matrix of bone

18.4 Hematopoietic stem cell C. Produces blood cells

19. Match the following types of tissue with its embryonic origin.

Option Your Answer

19.1 Epithelial tissue B. Ectoderm, endoderm, and mesoderm

19.2 Connective tissue and muscle tissue C. Mesoderm

19.3 Nervous tissue A. Ectoderm

20. Match the following types of cell with its function.

Option Your Answer

20.1 Neuron A. Conducts signals


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20.2 Supporting neuroglial cells B. Non-conducting cells

21. Match the following tissue types with their ability to regenerate.

Option Your Answer

21.1 Epithelial tissues, bone, loose connective tissue, andblood

D. Very good at regenerating.

21.2 Smooth muscle and dense connective tissue A. Moderate regeneratingcapacity

21.3 Skeletal muscle and cartilage B. Poor regenerating capacity.

21.4 Nervous tissue and cardiac muscle C. No useful regeneration.

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Your Results for "Multiple-Choice Quiz (Level I)" Print this page


and Physiology, 7e



Location on Site: 4: Tissue: The Living Fabric > Multiple-Choice Quiz

(Level I)

Date/TimeSubmitted:


Summary of Results


23 correct: 85%

4 incorrect: 15%

More information about scoring

1. During the process of tissue repair, which of the following processes produces scar tissue?

Your Answer: Fibrosis

During the process of tissue repair, fibrosis involves the proliferation of a fibrous connective tissuecalled scar tissue.

2. Embryonic ectoderm develops into which of the following major tissue types?

Your Answer: Epithelial tissue and nervous tissue

Nervous tissue develops solely from embryonic ectoderm, while epithelial tissues develop fromectoderm, endoderm, and mesoderm embryonic tissue.

3. What type of tissue forms tendons?

Your Answer: Dense regular

Dense regular connective tissue forms tendons.

4. Goblet cells are associated with which of the following epithelial tissues?

Your Answer: Simple columnar

Goblet cells are found within simple columnar epithelial tissue, scattered between the columnar-shaped cells.

5. In which of the following tissue types would fibrosis most likely completely replace lost tissue withscar tissue?

Your Answer: Cardiac muscle tissue

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In essentially non-regenerating tissues, fibrosis completely replaces the lost tissue with scar tissue.

6. The basement membrane is located between which of the following tissue types?

Your Answer: Epithelial and muscle

Correct Answer: Epithelial and connective

Epithelial tissue secretes the superficial basal lamina region of the basement membrane, whereasconnective tissue produces the deeper reticular layer of the basement membrane.

7. This type of connective tissue functions as a reserve energy supply for the body.

Your Answer: Adipose

Adipose tissue possesses large cells filled with fat droplets that serve as a reserve energy source forthe body.

8. This type of epithelial tissue lines the interior of blood vessels.

Your Answer: Endothelium

A simple squamous epithelial tissue lines the interior of blood vessels.

9. This unicellular gland is associated with mucus production.

Your Answer: Goblet cell

Goblet cells, located between columnar epithelial cells, function in producing the protein mucinwhich, when combined with water, forms mucus.

10. Which of the following apical epithelial cell structures functions in the movement of materials acrossthe surface of the cell?

Your Answer: Cilia

The cilia on an epithelium bend and move in coordinated waves pushing mucus and other substancesover the epithelial surface.

11. Which of the following best describes a squamous-shaped cell?

Your Answer: A flattened "scalelike" cell


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Squamous cells are flattened and scale-like.

12. Which of the following cell organelles is associated with the process of secretion in gland cells?

Your Answer: Golgi apparatus

In gland cells, the Golgi apparatus packages proteins into secretory granules that are released fromthe cell by exocytosis.

13. Which of the following epithelial tissue types is best adapted for the rapid transport of materialsacross its membranes?

Your Answer: Simple squamous

Simple squamous epithelial tissue, composed of a single layer of flattened cells, occurs whereversmall molecules must pass through a membrane quickly.

14. Which of the following is NOT a function of areolar connective tissue?

Your Answer: Movement of body parts

While areolar connective tissue holds body fluids, stores nutrients, supports and binds other tissues,and defends the body against infection, movement of body parts is a task performed by the threedifferent types of muscle tissue: skeletal, cardiac, and smooth.

15. Which of the following is NOT a function of epithelial tissues?

Your Answer: Control

Epithelial tissue functions in protection, secretion, ion transport, and filtration, but control is theprimary responsibility of nervous tissue.

16. Which of the following is NOT a symptom of inflammation?

Your Answer: Itching

Whereas heat, redness, swelling, and pain are symptoms of inflammation, itching is not.

17. Which of the following is NOT an example of connective tissue?

Your Answer: (blank)


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18. Which of the following tissues lines the majority of the digestive tract?

Your Answer: Transitional

Correct Answer: Simple columnar

Simple columnar epithelial tissue lines most of the digestive tract, from the stomach to the anus.

19. Which of the following types of epithelial tissue provides the greatest amount of protection?

Your Answer: Stratified columnar

Correct Answer: Stratified squamous

Stratified squamous is the thickest form of epithelial tissue, which is composed of multiple layers offlat cells.

20. Which of the following indicates the proper sequence of tissue repair?

Your Answer: Tissue damage, blood clotting, scab formation, organization, fibrosis and

regeneration

Following tissue damage, a blood clot forms which dries and forms a scab which will be replaced, viathe process of organization, with granulation tissue, which, in turn, gives rise to regenerated tissueand fibrous scar tissue through the processes of regeneration and fibrosis.

21. Which of the following are structural characteristics of epithelial tissue?

Your Answer: Closely packed cells without much extracellular material

Epithelial tissue has numerous, closely packed cells with very little extracellular material.

22. Which of the following are functional characteristics of epithelial tissue?

Your Answer: Secretion, protection, absorption, filtration

All of these are functional characteristics of epithelial tissue.

23. Mucous that protects your stomach lining is secreted by a specialized type of

Your Answer: simple columnar epithelial cell.


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These specialized simple columnar epithelial cells are goblet cells.

24. A type of epithelium with limited distribution in the body is

Your Answer: stratified cuboidal epithelium.

This type of epithelium is quite rare in the body.

25. A type of connective tissue that provides primary support and protection for body structures is

Your Answer: osseous tissue.

Because of its rock-like hardness, bone has an exceptional ability to support and protect bodystructures.

26. Which of the following tissue types controls most other tissues?

Your Answer: Nervous tissue

Nervous tissue sends electrical signals to control the body.

27. Which of the following is found on the surface of the skin?

Your Answer: Stratified squamous epithelium

The epidermis is stratified squamous epithelium.

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Your Results for "Matching Quiz" Print this page

Site Title: Marieb/Hoehn, Human Anatomy &

Physiology, 9e - Open Access

Book's Title: Human Anatomy and Physiology

Book's Author: Marieb/Hoehn

Location on

Site:Chapter 5: The Integumentary System

> Chapter Quizzes > Matching Quiz

Date/Time

Submitted:

October 29, 2014 at 3:00 AM

(UTC/GMT)

Summary of Results


83 correct: 93%

6 incorrect: 7%

20 questions contain multiple pairs, scored for a total of

89 questions. More information about scoring

1. Match each of the following epidermal cell types with its function.

Option Your Answer

1.1 keratinocytes C. produce a tough fibrous protein that gives the epidermismost of its protective qualities

1.2 melanocytes A. responsible for skin pigmentation

1.3 Merkel cells B. sensory receptor for touch

1.4 Langerhanscells

D. present antigens to the immune system

2. Match each of the following skin strata with its description.

Option Your Answer

2.1 stratum basale C. single row of cells composed of keratinocyte stem cells,melanocytes, and Merkel cells

2.2 stratumspinosum

B. several cell layers thick, with intermediate filaments,

keratinocytes and Langerhans cells

2.3 stratumgranulosum

D. three to five layers of flattened keratinocytes possessing

filaments and keratohyaline and lamellated granules

2.4 stratum lucidum

A. a thin, translucent band consisting of a few rows of flat,

dead, keratinocytes

2.5 stratumcorneum

E. many cell layers of dead keratinocytes filled with keratin

(outermost layer of skin)

3. Match each of the following integumentary system layers with its primary tissuetype.


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Option Your Answer

3.1 epidermis B. keratinized stratified squamous epithelium

3.2 hypodermis C. adipose connective tissue

3.3 papillary layer of dermis A. areolar connective tissue

3.4 reticular layer of dermis D. dense irregular connective tissue

4. Match each of the following skin functions with the mechanism that accomplishes it.

Option Your Answer

4.1 protection E. provides a chemical barrier and a mechanical barrier toward off bacterial invasion and to provide "waterproofing"

4.2 body temperatureregulation

C. dilation of blood vessels and secretion of sweat that

evaporates from body surface

4.3 cutaneoussensation

A. activation of numerous receptors that are part of the

nervous system

4.4 metabolicfunctions

D. synthesis of vitamin D; destruction of cancer-causing

chemicals; activation of some steroid hormones

4.5 blood reservoir B. potential to hold about 5% of the body's blood volumein numerous blood vessels

5. Match each of the following with its associated skin color.

Option Your Answer

5.1 hemoglobin A. red

5.2 carotene C. yellow to orange

5.3 cyanosis B. blue

5.4 melanin D. ranges from yellow to reddish to brown to brownish black

6. Match each of the following hair structures with its description.

Option Your Answer Correct Answer

6.1 root B. The portion of the hair that isembedded in the skin.

B. The portion of the hair that is

embedded in the skin.


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6.2 cuticle E. Region of a hair that projectsabove the skin surface.

A. Superficial covering of a hair

consisting of a single layer of cells

that overlap one another.

6.3 shaft A. Superficial covering of a hairconsisting of a single layer of cells

that overlap one another.

E. Region of a hair that projects

above the skin surface.

6.4 medulla

D. The intermediate layer of a

hair composed of several layers of

flattened cells.

C. The central core of a hair,

consisting of large cells and air

spaces.

6.5 cortex C. The central core of a hair,consisting of large cells and air

spaces.

D. The intermediate layer of a

hair composed of several layers of

flattened cells.

7. Match each of the following hair-follicle-associated structures with its description.

Option Your Answer Correct Answer

7.1 hair matrix B. actively dividing cellulararea of the bulb that produces

the hair

B. actively dividing cellular

area of the bulb that produces

the hair

7.2 connectivetissue root

sheath

C. the expanded, deep region

of a hair follicle

A. superficial wall of the hair

follicle which is derived from

the dermis

7.3 hair bulb A. superficial wall of the hairfollicle which is derived from

the dermis

C. the expanded, deep region

of a hair follicle

7.4 root hairplexus

D. a knot of sensory nerve

endings wrapped around the

base of a hair follicle

D. a knot of sensory nerve

endings wrapped around the

base of a hair follicle

7.5 arrector pili E. bundle of smooth muscletissue running from the

superficial dermis to the hair

follicle; responsible for

producing goose bumps

E. bundle of smooth muscle

tissue running from the

superficial dermis to the hair

follicle; responsible for

producing goose bumps

8. Match each of the following glands with its location.

Option Your Answer

8.1 sebaceous glands E. found all over the body except the palmsand soles

8.2 eccrine sudoriferous glands B. most abundant on the palms, soles, andforehead


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8.3 apocrine sudoriferous sweatglands

A. axillary, anal, and genital regions

8.4 ceruminous glands C. line the external ear canal

8.5 mammary glands D. pectoral region

9. Match each of the following integumentary system glands with its product.

Option Your Answer

9.1 sebaceous gland E. oil

9.2 eccrine sudoriferousgland

C. sweat

9.3 apocrine sudoriferousgland

B. components of sweat plus fatty substances and

proteins

9.4 ceruminous gland A. components of earwax

9.5 mammary gland D. milk

10. Match each of the following nail structures with its description.

Option Your Answer

10.1 body E. visible, attached part of the nail

10.2 nail bed C. epidermis on which the nail rests

10.3 root B. proximal region of the nail, embedded in the skin

10.4 free edge A. distal edge of the nail

10.5 nail matrix

F. actively growing part of the nail

10.6 lunula D. white, crescent-shaped area under the nail's proximal region

11. Match each of the following types of burns with its description.

Option Your Answer

11.1 first-degreeburn

A. damage to only the epidermis that results in redness,

swelling, and pain

11.2 second-degree burn

C. injury to the epidermis and the superficial region of the

dermis resulting in redness, swelling, pain, and blisters


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11.3 third-degreeburn

B. entire thickness of the skin is consumed, resulting in the

burned area appearing white, red, or blackened

12. Match each of the following forms of skin cancer with its description.

Option Your Answer

12.1 basal cellcarcinoma

B. Least malignant form of skin cancer in which the stratum

basale cells proliferate and invade the dermis and

hypodermis, causing tissue destruction

12.2 squamous cellcarcinoma

A. Arises from the keratinocytes of the stratum spinosum with

lesions appearing as scaly, irregular, reddened small, rounded

elevations that tend to grow rapidly and metastasize if not

removed

12.3 melanoma C. The "most dangerous form" of skin cancer because it ishighly metastatic; can originate wherever there is pigment,

but often arises from existing moles, metastasizing rapidly

into surrounding circulatory vessels

13. Match the following components of the ABCDE rule for recognizing melanoma.

Option Your Answer

13.1 asymmetry A. the two halves of a spot or a mole do NOT match

13.2 border irregularity C. pigmented spot possesses notches and indentations

13.3 color E. inconsistent pigmentation

13.4 diameter D. larger than 6 mm

13.5 elevation B. rises above the skin surface

14. Match each of the following conditions with its description.

Option Your Answer

14.1 alopeciaareata

C. A rare condition where hair follicles are attacked by the

immune system, causing the hair to fall out in patches.

14.2 impetigo A. Fluid-filled, raised lesions, common around the mouth andnose, that develop a yellow crust and eventually rupture;

contagious.

14.3 eczema B. Skin rashes resulting from allergic reactions.


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14.4 psoriasis D. Autoimmune condition, resulting in an over proliferation of theepidermis, characterized by reddened epidermal papules covered

with dry, silvery scales.

15. Match each of the terms with their associated skin condition.

Option Your Answer

15.1 too muchcarotene

A. causes yellowing of skin, especially in palms and soles from

accumulation in stratum corneum when consumed in large

amounts

15.2 tanning C. increased production of melanin due to increased exposureto the sun

15.3 jaundice B. yellowish to pale-green coloring of skin caused by anaccumulation of bile pigments in blood

16. Match each of the following changes in skin color with its associated clinical signs ofdisease.

Option Your Answer

16.1 cyanosis E. possible heart failure; possible respiratorydisorders

16.2 redness or erythema F. fever, hypertension, polycythemia,inflammation, allergy

16.3 pallor or blanching A. fear, anger, stress, anemia, low bloodpressure

16.4 jaundice B. liver disorder

16.5 bronzing C. Addison's disease; hypofunction of adrenalcortex

16.6 black and blue marks orbruises

D. blood clots beneath the skin

17. Match the following glands with their functions.

Option Your Answer

17.1 eccrine sweatglands

B. secrete a hypotonic filtrate of the blood (99% water with

traces of salt, vitamin C, antibodies, metabolic wastes and

lactic acid)


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17.2 apocrinesweat glands

D. contains same secretions as true sweat, plus fatty

substances and proteins. When these organic molecules

decompose by bacterial action there is an associated

unpleasant odor

17.3 ceruminousglands

E. modified apocrine glands that produce earwax

17.4 mammaryglands

C. modified sweat glands that secrete milk

17.5 sebaceousglands

A. holocrine glands that secrete an oily substance called

sebum to lubricate skin and hair

18. Match each of the following hair colors with the basis for its color.

Option Your Answer

18.1 blackhair

B. maximum production of melanin

18.2 blondehair

D. no production of melanin; no iron-containing pigment

18.3 red hair C. absence of melanin; presence of iron-containing pigment

18.4 whitehair

A. replacement of melanin with air bubbles in the hair shaft as

melanin production decreases

19. Match the following ages with the appropriate skin characteristics for that age.

Option Your Answer

19.1 newborn baby B. presence of vernix caseosa produced by sebaceousglands

19.2 infancy andchildhood

D. skin thickens and more subcutaneous fat is deposited

19.3 adolescence A. skin and hair become oilier as sebaceous glands areactivated; dermatitis becomes more common

19.4 old age C. epidermal cell replacement declines; skin thins;sebaceous gland activity diminishes

20. Match the following hair features with their description.

Option Your Answer


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20.1 vellus hair C. body hair of children and adult females

20.2 terminal hairs A. coarser, long, darker hairs

20.3 alopecia B. loss of hair

20.4 male pattern baldness D. baldness produced by delayed-action genes

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Location on


> Chapter Quizzes > Multiple-Choice

Quiz

Date/Time

Submitted:


(UTC/GMT)

Summary of Results


30 correct: 100%

0 incorrect: 0%


1. An injection is administered through the skin using a hypodermic needle. Identifythe first integumentary structure through which the needle will pass.

Your Answer: epidermis

A hypodermic needle would first pass through the superficial layer of the skin, theepidermis, then the two layers of the dermis, the papillary layer and the reticularlayer, before penetrating the hypodermis.

2. Sebaceous glands are located in all of the following areas, EXCEPT the __________.

Your Answer: palms and soles

Sebaceous glands occur over the entire body, with the exception of the palms andsoles of the feet.

3. Sebaceous glands belong to which of the following classes?

Your Answer: simple branched alveolar

Sebaceous glands are simple branched alveolar glands with several alveoli opening

into a single duct.

4. Terminal hair is located in all of the following areas, EXCEPT the __________.

Your Answer: body hair of females

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1 of 7 10/28/2014 10:05 PM

The body hair of women and children is the fine, short, vellus variety, while theadult male's body hair is the terminal variety.

5. The dermis is primarily composed of which tissue type?

Your Answer: dense irregular connective tissue

The deeper reticular layer, which accounts for about 80% of the thickness of the

dermis, is composed of dense irregular connective tissue.

6. The epidermis is composed of which of the following tissues?

Your Answer: keratinized stratified squamous epithelial tissue

The superficial layer of the skin, the epidermis, is composed of thick keratinizedstratified squamous epithelium.

7. What is the primary function of melanin?

Your Answer: to provide protection against the sun's UV rays

Melanin forms a protective layer that screens out a portion of the sun's cancer-

causing UV rays.

8. Which is the correct sequence of epidermal layers of thick skin, from deep tosuperficial?

Your Answer: stratum basale, stratum spinosum, stratum granulosum, stratum

lucidum, stratum corneum

In thick skin, the cell layers, ordered from deep to superficial, are: stratum basale,stratum spinosum, stratum granulosum, stratum lucidum, and stratum corneum.

9. Which of the following do NOT derive from epidermal tissue?

Your Answer: dermal papillae


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Dermal papillae are fingerlike projections found on the superficial surface of thedermis.

10. Which of the following cells would one NOT expect to find in the dermis?

Your Answer: keratinocytes

The dermis possesses all the cells that one would expect to find in connective

tissue: mast cells, fibroblasts, macrophages, and scattered white blood cells.

11. Which of the following epidermis components possesses a waterproofing glycolipidthat functions in preventing water loss?

Your Answer: lamellated granules

The lamellated granules contain a waterproofing glycolipid that is secreted into theintercellular space and is the major factor for slowing water loss across theepidermis.

12. Which of the following human integumentary system glands is believed to beanalogous to the sexual scent glands of an animal?

Your Answer: apocrine sudoriferous gland

Apocrine glands start to function at puberty under the influence of androgens, their

activity is increased by sexual foreplay, and they enlarge and recede with the

phases of a women's menstrual cycle.

13. Which of the following is most important in determining skin coloration?

Your Answer: melanin

Melanin, the most important contributor to skin coloration, is present in several

varieties, ranging from yellow to reddish to brown to black.

14. Which of the following is NOT strictly a component of the integumentary system?


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Your Answer: hypodermis

The hypodermis, deep to the skin, shares some of the skin's functions, but it is nota part of the integumentary system.

15. Which of the following is NOT a function of the skin?

Your Answer: respiratory gas exchange

Although the skin functions in protection, excretion, preventing unnecessary water

loss, and the regulation of body temperature, respiratory gas exchange is a function

of the respiratory system.

16. Which of the following is NOT considered a critical burn?

Your Answer: first-degree burns on 30% of the body

First-degree burns are not considered critical because they typically heal in a fewdays without any special attention.

17. Which of the following is the most immediate threat to life from a serious burn?

Your Answer: loss of body fluids

The immediate threat to life from serious burns is a catastrophic loss of body fluids,

which, in turn, can lead to fatal circulatory shock.

18. Which of the following strata is not visible as a distinct layer in thin skin?

Your Answer: stratum lucidum

The stratum lucidum appears in thick skin but it is not visible as a distinct layer inthin skin.

19. Which of the following structures are primarily responsible for fingerprints?

Your Answer: epidermal ridges and sweat pores


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Sweat pores open along the crests of the epidermal ridges, leaving distinctfingerprints on anything that is touched.

20. Which of the following thick skin strata is the thickest?

Your Answer: stratum corneum

The superficial stratum corneum is many cell layers thick, much thicker than any

other epidermal layer.

21. Skin eruption produced by dilated small blood vessels of the face, especially on thenose and cheeks, is descriptive of which skin disorder?

Your Answer: rosacea

Skin eruption produced by dilated small blood vessels of the face may indicaterosacea, especially when it appears to worsen in conjunction with intake of alcohol,spicy foods, or after a hot bath or sun exposure.

22. Which of the following layers of the skin relies on capillaries in the underlyingconnective tissue in the dermis for its nutrients?

Your Answer: epidermis

The epidermis is avascular and has to obtain nutrients from the underlying

connective tissue in the dermis.

23. A possible cause of rosacea is __________.

Your Answer: the same bacterium that causes peptic ulcers

Many people with rosacea are helped by antibiotic therapy.

24. Which of the following cells is part of the immune system?

Your Answer: Langerhans cell


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The Langerhans cell is a fixed macrophage.

25. Which of the following cells function as sensory receptors for touch?

Your Answer: Merkel cells

Merkel cells function as sensory receptors for touch.

26. Keratinocytes in the stratum spinosum are known as __________.

Your Answer: prickle cells

Keratinocytes in the stratum spinosum are known as prickle cells because of theirspiny appearance under the microscope from an artifact produced by stainingprocedures.

27. All of the following statements are true about our fingerprints, EXCEPT that__________.

Your Answer: they represent the sweat patterns left by dermal ridges

This is an incorrect statement. Dermal ridges give rise to epidermal ridges, whichare on the surface of the skin.

28. Striae in the skin are caused by __________.

Your Answer: dermal tears

Striae in the skin are due to dermal tears.

29. Which of the following conditions would NOT be seen from overexposure to UVlight?

Your Answer: activation of the immune system


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Overexposure to UV light will depress the immune system.

30. A hematoma in the skin appears as __________.

Your Answer: black and blue marks

A hematoma caused by clotting of blood under the skin appears as black and blue

marks or bruises.

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Your Results for "True-False Quiz" Print this page





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> Chapter Quizzes > True-False Quiz

Date/Time

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Summary of Results


20 correct: 95%

1 incorrect: 5%


1. Wounded skin releases large quantities of protective peptides that help preventsome infections.

Your Answer: True

These peptides (cathelicidins) are particularly effective in preventing infection bygroup A streptococcus bacteria.

2. A surgical incision performed on the forearm will heal more readily if the incision ismade along a longitudinal plane rather than along a transverse plane.

Your Answer: True

Because lines of cleavage run longitudinally in the skin of the limbs, an incisionmade parallel to these lines will result in the skin gaping less and healing morereadily than when an incision is made along a transverse plane across cleavage

lines.

3. Because of the great thickness of the epidermis, it is very vascular.

Your Answer: False

Like all epithelia, the epidermis is avascular and relies on capillaries in the

underlying connective tissue for its nutrients.

4. Dermal blood vessels hold only 1% of the body's blood, and therefore the skin doesnot contribute significantly as a blood reservoir.

Your Answer: True

Your Results for "True-False Quiz" http://wps.aw.com/wps/grader

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Correct Answer: False

Dermal blood vessels account for 5% of all the blood in the body and contribute tothe skins role as a blood reservoir.

5. Sweat is produced as a holocrine secretion, in which the cells themselves break upto form the product.

Your Answer: False

Sweat is produced as secretions pass through the secretory cells of the sweat

glands by the process of exocytosis, leaving the secretory cells intact.

6. The dermis functions in helping to control body temperature.

Your Answer: True

Dermal blood vessels not only contract, reducing heat loss, but engorge with bloodas well, allowing heat to radiate from the body.

7. The body produces carotene when exposed to sunlight.

Your Answer: False

Carotene is found in certain plant products. We obtain it by eating plants containingthis pigment.

8. The hypodermis is also known as the subcutaneous layer as well as the deep fascia.

Your Answer: False

The hypodermis can correctly be referred to as the subcutaneous layer as well as

the superficial fascia.

9. The main function of hair over most of the surface of the human body is to preventheat loss.


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Your Answer: False

The main function of our sparse body hair is to sense things that lightly touch ourskin, and provide minor protective roles (e.g. eyelashes shield the eyes). Only onthe scalp does hair provide some prevention of heat loss..

10. Melanocytes are the most abundant cells in the epidermis.

Your Answer: False

Keratinocytes, by far the most abundant epidermal cells, produce keratin, a tough

fibrous protein that gives the epidermis its protective properties.

11. The skin functions in synthesizing vitamin D.

Your Answer: True

Vitamin D, important in the uptake of calcium, is produced in the skin from modifiedcholesterol molecules.

12. The sebaceous and sweat glands, located in the dermis, are derived from theepidermis.

Your Answer: True

Skin appendages, including hair and hair follicles, sebaceous glands, oil glands, andnails, extend into the dermis, but are derived from the epidermis.

13. The superficial region of the skin is called the epidermis.

Your Answer: True

The epidermis is the superficial region of the skin, overlaying the deeper dermis.

14. Thick skin is composed of four layers of cells.


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Your Answer: False

Thick skin, which covers the palms and soles, consists of five layers, or strata, ofcells.

15. A cyanotic appearance in Caucasians is a symptom of liver disease.

Your Answer: False

Cyanosis indicates lack of oxygen.

16. A child who has been playing in the dirt will often accumulate dirt in the lunule ofthe nail.

Your Answer: False

The dirt accumulates in the hyponychium of the nail.

17. Blood vessels in the dermis constrict when the external environment is cold,minimizing heat loss from the skin.

Your Answer: True

Constriction causes warm blood to bypass the skin temporarily, thereby conservingbody heat.

18. Melanin functions as an effective "sunscreen."

Your Answer: True

Melanin is able to convert potentially destructive radiation into harmless heat.

19. New skin lotions have been developed that can "fix" damaged DNA before the cellsdevelop into cancer cells.


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Your Answer: True

These lotions contain liposomes filled with enzymes that initiate repair of damaged

DNA.

20. The dermis contains two layers which abut one another along an indistinctboundary.

Your Answer: True

The dermis contains the papillary and reticular layers, which abut one another alongan indistinct boundary.

21. Arrector pili muscles cause "goosebumps."

Your Answer: True

Arrector pili muscles elevate hair follicles, causing them to bulge on the surface of

the skin.

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