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integrementary
professional nursing
Term | Definition |
---|---|
Epidermis Layer: | several thin layers: Melanocytes--melanin Keratinocytes (waterproof layer)--keratin |
Dermis Layer: | composed of a thick layer of skin; contains collagen and elastic fibers, nerve fibers, blood vessels, sweat and sebaceous glands, and hair follicles |
Subcutaneous Layer: | composed of a fatty layer of skin; contains blood vessels, nerves, lymph, and loose connective tissue filled with fat cells |
First line of Defense Against Infection: | Skin. - identifying risk pts risk for pressure ulcers and detection of any break in the skin are important in preventing infection |
Melanocytes (melanin): | a pigment that gives the skin its color and protects from ultraviolet radiation |
Keratinocytes (keratin): | waterproof layer of protein that gives it tough protective quality |
Protection: | intact skin prevents invasion of the body of bacteria |
Thermoregulation: | facilitates heat loss and cools and warms the body when necessary |
Perspiration: | cools the body through evaporation also prevents perspiration to inhibit cooling |
Vasodilation: | increase he blood supply to the skin surface facilitating in heat loss through radiation and conduction |
Vasoconstriction: | decrease blood supply to prevent heat loss |
Fluid and Electrolyte: | prevents escape of H2O and electrolytes |
Vitamin D: | facilitates synthesis of Vit D through conversion of initial precursor to the second precursor of the vitamin in the skin by the sun’s ultraviolet rays |
Sensation: | body receives stimuli from the environment by activation of the skin receptors for pain, touch, pressure and temperature |
Psychosocial: | contributes to positive body image |