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6-1
Hole’s HumanAnatomy and Physiology
Hole’s HumanAnatomy and Physiology
Chapter 6Skin and the Integumentary System
Chapter 6Skin and the Integumentary System
6-2
Layers of the Skin
Epidermis
Dermis
Subcutaneous Layer
6-3
EpidermisKeratinized Stratified Squamous Epithelium
Lacks Blood Vessels
Thickest on Palms And Soles
Melanocytes Provide Melanin
Rests on Basement Membrane
6-4
Epidermis
Layers Of Epidermis Stratum Corneum
Stratum Lucidum
Stratum Granulosum
Stratum Spinosum
Stratum Basale
6-5
Average 1-2mm Thick
Dermal Papillae
Binds Epidermis to
Underlying Tissues
Irregular Dense
Connective Tissue
Muscle Cells
Nerve Cell Processes
Blood Vessels
Hair Follicles
Glands6-6
Dermis
Hypodermis
Loose Connective Tissue
Adipose Tissue
Insulates
Major Blood Vessels6-7
Subcutaneous Layer
Hair Follicles Epidermal Cells Tube-like Depression Extends into Dermis Hair Root Hair Shaft Hair Papilla Dead Epidermal Cells Melanin Arrector Pili Muscle
6-8
Nails
Protective Coverings
Nail Plate
Nail Bed
Lunula
6-9
Sebaceous GlandsUsually Associated with Hair Follicles
Holocrine Glands
Secrete Sebum
Absent on Palms and Soles
6-10
Sweat GlandsSudoriferous Glands
Widespread In Skin
Deeper Dermis
Or Hypodermis
Eccrine Glands
Apocrine Glands
Ceruminous Glands
Mammary Glands
6-11
Regulation Of Body Temperature
6-12
Problems In Temperature Regulation
Hyperthermia Abnormally High Body Temperature
Hypothermia Abnormally Low Body Temperature
6-13
6-14
Skin Color
Healing Of Cuts
6-15
Healing Of BurnsFirst Degree Burn Superficial Partial-thickness
Second Degree Burn
Deep Partial-thickness
Third Degree Burn – Full-thickness
Autograft
Homograft
Various Skin Substitutes
Extensive Scars
6-16
Rule Of Nines
6-17
Life Span Changes
6-18
Clinical Application
6-19
Acne VulgarisMost Common Skin DisorderSebum And Epithelial Cells Clog GlandsProduces Whiteheads And Blackheads (Comedones)Anaerobic Bacteria Trigger Inflammation (Pimple)Largely Hormonally InducedAndrogens Stimulate Sebum ProductionTreatments Include Antibiotics, Topical Creams, Birth Control Pills
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