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ANT 2501 M1 Case - Skin Anatomy Pamela Roberson TUI...

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Skin Anatomy Pamela Roberson TUI University
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Skin Anatomy The skin is the external covering of the body, which also performs various functions including protection from injury, from the sun’s harmful rays and from invasion of bacteria. The skin’s thickness varies depending on its location on the body. The outermost layer is composed mainly of keratinized cells, which render the skin waterproof. Structurally, the skin has two distinct layers: the superficial epidermis and the underlying dermis, which are cemented firmly together. The epidermis is made up of epithelial cells and has no blood vessels while dermis is made up of connective tissue and is vascular (Scott et al., 2009). Structure of the Epidermis The epidermis is composed of stratified squamous epithelium, which is packed closely together. Along most body surfaces, the skin is thin and has four distinct layers, but it has five layers in parts of the body which are subjected to increased pressure such as palms and soles (Alcamo et al., 2004). Its five layers from deep to superficial are: the stratum germinativum, stratum spinosum, stratum granulosum, stratum lucidum and stratum corneum. Stratum
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