NSG 3325 Lecture Notes - Lecture 49: Subcutaneous Tissue, Sebaceous Gland, Adipose Tissue
Document Summary
Compromises the protective coating that guards the body from injury. Careful assessment of skin, hair, and nail abnormalities will sustain the protective shield. 2 skin layers: epidermis and dermis > facilitating heat loss, heat conservation. 5 major functions of skin protection, temperature regulation, vitamin d metabolism, sensation, and excretion. Apocrine - present in hair follicles of the armpits and genitalia. Keratinocytes - strati ed squamous epithelial cells made of keratin. Keratin - waterproof brous protein that protects skin and hair. Langerhans cell - outermost cells of immune system that ingest foreign substances that tenter the body through the skin, then present the antigen to the immune system"s t cells. Melanocytes - in epidermal layer and produce melanin, which is the pigment that dictates skin color and protects underlying skin structures from uv damage. Dermis - encases blood vessels, nerves, immune system cells, dermal protein, hair follicles, sweat and sebaceous glands.
