건강사정 1강 skin, nail, hair 요약 내용
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- 2021.05.25
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"건강사정 1강 skin, nail, hair 요약 내용"에 대한 내용입니다.
목차
1. Structure and function
2. Developmental competence
3. Objective data
본문내용
1. Structure and function
1. skin
The skin is the largest organ system in the body.
-Function of the skin
protection, prevents penetration (stops invasions of microorganisms), perception, temperature regulation, identification (facial), communication, wound repair (replacement), absortion and excretion, production of vitamin D
It has two layers,
① epidermis: outer, highly differentiated/ thin but tough. protective barrier. completely replaced every 4 weeks. avascular; it is nourished by blood vessels in the dermis below.
*Skin color is derived from three sources, melanin(brown pigment), carotine(yellow orange), red purple in the underlying vascular bed.
② dermis: inner supportive layer consists of connective tissue, or collagen. The nurves, sensory receptors, blood vessels, and lymphatics lie in the dermis. Hair follicles, sebaceous glands, and sweat glands are embedded in dermis.
+Beneath these is the subcutaneous layer of adipose tisssue(fat cells). It provides insulation for temperature control and soft cushioning effect.
참고 자료
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