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27 Cards in this Set
- Front
- Back
Epidermis
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Avascular layer composed of 4-5 different layers
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Keratinocytes
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The most abundent epithelial cells in the epidermis and produce keratin.
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Melanocytes
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Epidermal cells that produce pigment called melanin
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Dendritic Cells
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Immunity cells of the epidermis
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Tactile (Merkel) Cells
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Responsible for touch receptors.
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Stratum basale
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The deepest layer of the epidermis composed of rapidly dividing cells and melanocytes
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Stratum spinosum
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2nd deepest layer in the epidermis composed of dividing cells and tactile cells
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Stratum granulosum
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3rd deepest layer in the epidermis composed of dying cells
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Stratum lucidum
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4th deepest layer in the epidermis composed of flattened dead keratinocytes used for protection in high impact areas
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Stratum corneum
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Outermost layer of keratinocytes consisting of about 20-30 layers of dead keratinocytes
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Dermis
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2nd layer of skin inferior to the epidermis, composed of papillary layer and reticular layer
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Dermal papilae
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Superior layer of dermis which is bumpy giving individuals their finer prints
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Reticular Layer
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Deepest skin layer composed of dense irregular connective tissue and contains many arteries and veins, sweat and sebaceous glands, and pressure receptors
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Melanin
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Gives people their browish tone
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Carotene
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Gives people their yelow-orangish tone
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Body
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The visable attached portion
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Free Edge
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Portion of the nail that frows out away from the body
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Root
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The part that is embedded in the skin and adheres to an epithelial nail bed
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Nail Folds
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Skin folds that overlap the boarders of the nail
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Eponychium
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The thick proximal nail fold commonly called the cuticle
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Nail Bed
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Extension of the stratum basale beneath the nail
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Nail Matrix
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Thickened proximal part of the nail bed containing germinal cells responsible for nail growth
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Lunule
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Proximal region of the thickened nail matrix which appears as a white crescent.
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Hair
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Consist of three different parts, the medulla, cortex, and cuticle
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Folicle Wall
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The superficial layer of hair composed of an internal and external epithealial root sheath, glassy membrane, and connective tissue root sheath
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Eccrine Glands
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Sweat glands found over the majority of the body that help us to cool down during exercise
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Apocrine Glands
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Sweat glands found in the axillary and genital areas that produce a milky protein and fat rich sweat.
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