Anatomy & PhysiologyCells & Histology

Name________________________Date______________ Period____

Ch. 4– Epithelia & Connective TissueCh. 4– Epithelia & Connective TissueWord bank: not all words are used and some may be used more than once

AdiposeAreolar/looseBlastBloodBoneCartilageCiliaCiliatedClast

ColumnarConnectiveCuboidalCyteDense collagenousDense connectiveDense elasticDesmosome

EpithelialGap junctionGoblet cellsHemidesmosomeHistologyMacrophageMast cellMicrovilliPseudostratified

SimpleSmoothSquamousStratifiedTight junctionTissueTransitional

1. __Tissue__ is a group of cells with similar structure and function who have a similar extracellular matrix.

2. __Histology___ is the microscopic study of tissue structure

3. List two causes of tissue change or reasons why tissues change. (Not in word bank)Aging, infections, trauma, toxins

4. __Epithelial___ tissue consists mostly of cells, with very little ECM, whereas ___Connective___ tissue has very few cells with a lot of ECM.

5. What type of tissue is the most abundant in the body? ____Skeletal_________

6. Tissues with 1 layer of cells are said to be __simple squamous epithelial__ and control the passage of materials via diffusion, filtration, secretion, and absorption.

7. Tissues with 1 layer of cells are said to be _simple cuboidal epithelial__ and control the passage of materials via diffusion, filtration, secretion, and absorption.

8. ___Simple squamous ____ cells are typically involved in diffusion (lung alveoli) and filtration (kidney tubules), whereas ____simple cuboidal _____ (two possible answers) cells are involved in secretion (mucus in stomach lining) and absorption (kidney tubules).

9. Types of cell surfaces that are __smooth______ serve to decrease friction in blood vessels.

10. Cells are anchored to one another by cell connections called ___tight junctions_____, whereas __gap junctions___ create channels to allow intercellular communication.

11. __microvilli ___ on cell surfaces increase cell surface area to increase absorption or secretion (small intestine lining), whereas ___cilia___ on cell surfaces serve to move materials across the cell’s surface (nasal passages). Tissues with these structures tend to also have embedded __goblet___ cells which secrete mucus.

12. Connective tissue cells are named according to their function. Name the following types of cells:

a. ____Macrophage_____ - cells that ingest foreign substances

b. ____Cyte___________ - cells that maintain tissue

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Anatomy & PhysiologyCells & Histology

c. ____Clast___________ - cells that break down for remodeling

13. ___ Adipose_____ connective tissue stores fat as an energy source, as thermal insulation, and for protection.

14. ___Elastic_____ connective tissue stretches and recoils, and is found in the vocal cords and aorta.

15. ____ Areolar / Loose _______ connective tissue forms membranes between organs, binding them together, and is found between glands, muscles, and attaches skin to tissues.

16. ____Cartilage_____________ forms junctions between bones, is found in the external ear, and covers bone ends involved in joints.

Identify the tissues shown. Underneath your answer, identify where this type of tissue is usually found.

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Anatomy & PhysiologyCells & Histology

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