Unit 7 .1 Flashcards

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1
Q

Annotate a diagram of the generalized
structure of the skin

A

Epidermis
- Dermis
- Fat
- Glands
- Hair follicles

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2
Q

Describe the functions of the skin

A
  1. Regulation of Body Temperature
    Evaporative cooling:
    - In hot weather, there is an increase in blood flow to the skin
    - There is an increase in sweat production by the sweat glands
    - Evaporation of sweat cools the skin which leads to a decrease in body temperature
    Insulation happens via the subcutaneous fat layer
  2. Protection and Immunity
    - Protection of underlying tissues against impact, abrasion, fluid loss, and harmful
    chemicals
  3. Sensation
    - Detection of touch, pressure, pain and temperature stimuli through nerve endings
    and receptors in the skin
  4. Excretion
    - Excretion of salts, water, and organic waste are released
  5. Synthesis of Vitamin D
    - When exposed to sunlight epidermal cells produce vitamin D
    - Vitamin D is important in the absorption of calcium which promotes bone growth
    and muscle contraction
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