Nursing NUR203 Chapter 13: Skin, Hair, and Nails
7 Feb 2017
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Nur203 week three/chapter 13: skin, hair, and nails. Structure and function: skin, epidermal appendages, function of the skin. Inspect and palpate the nails: promoting health and self-care. The skin has two layers: the epidermis (outer layer) and the dermis (inner layer). Beneath these two layers is the subcutaneous layer (composed of adipose tissue) Epidermis: this layer is thin, but tough. This is the outer layer that consists of dead keratinized cells packed close together. These cells are constantly shed (desquamated) and replaced with new ones from below: the epidermis is replaced every 4 weeks, aside from the palms and soles, the epidermis is uniformly thin. On the palms and soles, skin is thicker cause of work and weight bearing. It is also avascular; nourished by blood vessels in the dermis below: skin color is derived from three source. The prevailing color is affected by the relative proportions of these shades.
