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Ch. 5 - Skin

Q & A - Skin Layers

What are 2 major divisions of the skin? Epidermis and Dermis.
What is the role of the Hypodermis? This layer attaches skin to the body ; fat storage ; fights pathogens ; insulation ; brings blood supply ; pressure detection.
Forms the Hypodermis Layer. Adipose & Loose Connective Tissue
Forms the Epidermis. Stratified squamous epitheliam.
The Epidermis does not have a blood supply (True/False). True
Stratum Basale Deepest layer, reproductive layer ; reproduces new keratinocytes.
Stratum Corneum Boundry ; keeps things out ; keeps things in.
Keratinocytes This cell represents 90% of the skin.
What are warts? (Virus) An epidermal tumor.
What is dandruff? Over production of new cells in the epidermis.
What are calluses? Thickened area of skin due to constant pressure.
What are blisters? Physical separation of Epidermis and Dermis - fluid fills in the space.
The Epidermis provides these types of protection: Abrasion, Pathogens, Ultraviolet radiation, Chemicals, and Repair.
What does it mean to have strength (Dermis)? Lots of Collagen.
What does it meas to have extensibility (Dermis)? Elastic - stretch without damaging yourself.
What does it mean to have elasticity (Dermis)? Stretch - recoils back to normal.
What are the functions of the Dermal Papillae? Blood supply for the Epidermis ; Sensations ; Fingerprints.
Created by: Jamiew0282