Skin and Layer

Topics: Skin, Muscle, Bone Pages: 1 (254 words) Published: May 2, 2013
1.Define a wound

When a physiological function of the tissue is impaired by way of injury to the integument or underlying structures. Which might result in loss of skin. (Carville, 2012, p. 16)

2. List the functions of the skin
Function of skin is to regulate temperature
Synthesize vitamin D
Protects us from injury and damage
Sensation and communication via nerve endings and receptors in the skin Elimination of waste through excretion and secretion of sweat etc. (Harris, 2010, p. 757)

3. Name the three layers of the skin and give a brief description of each layer.

Epidermis- the outermost layer which depending on the body location has several layers. The stratum coreum which is thinnest outermost layer consisting of dead keratinized cells protect underlying cells and tissue from dehydration and stop entry of certain chemicals agents. The stratum basale where the cells divide, proliferate and migrate towards the epidermal surface continually ensuring replacement of cells sloughed off during normal shedding. (Crisp, Taylor, Douglas, & Rebeiro, 2013, p. 754)

Dermis-Middle layer that mainly contains connective tissue and a few skin cells, which provides the tensile strength, mechanical support and protection to the underlying muscles, bones and organs. (Crisp, Taylor, Douglas, & Rebeiro, 2013, p. 758)

Hypodermis-The bottom and thickest layer of the skin, which is made up of adipose, connective tissue and blood vessels. It provides a support framework for the skin and attachment and is a protective layer for the underlying organs and structures. (Crisp, Taylor, Douglas, & Rebeiro, 2013, p. 758)
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