NURS 3311 Quiz: Health Assessment Exam 2
Document Summary
Largest organ of the body; covers 20 square feet of surface area for adults. Dermis- inner supportive layer; mostly connective tissue or collagen. Beneath the two layers is the subcutaneous layer- adipose tissue; fat cells. Epidermal appendages- formed by tubular invagination of epidermis down into underlying dermis. Functions of the skin: protection, prevents penetration, perception, room temperature, identification, communication, wound care, absorption and excretion, production of vitamin d -> skin is also waterproof, protective, and adaptive. Eccrine- coiled tubules that open directly onto the skin surface and produce a dilute saline aka sweat. Aprocine- produces a thick milky secretion and open into hair follicles; located- axillae, anogenital area, nipples and navel. Terminal hair- darker, thicker hair that grows on the scalp, pubic area, legs and. Vellus hair- covers most of the body axillae. Nails: hard plates of keratin on dorsal side edges of fingers and toes. Aging adult: skin reflects the aging changes that proceed in all organ systems.
