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22 Cards in this Set
- Front
- Back
Keratinocytes are the predominant cells in the:
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epidermis
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Nourishment to cells in the epidermis is provided by:
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blood vessels in the dermal papillae
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Absorption of damaging light rays is the primary function of:
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melanin
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The layer of the skin from which new epidermal cells are derived is the
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Stratum basale
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The function of keratin is to:
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make skin tough and waterproof
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The reproducing cells of the epidermis are found in the
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Stratum basale
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The stratum basale contains:
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stem cells of keratinocytes
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Which of the following is most superficial?
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stratum corneum
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The epidermis is made up of:
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stratified squamous epithelium
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"Goosebumps" occur due to:
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the action of arrector pili muscles as they raise hairs to an upright position
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The outermost layer of the epidermis is the:
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Stratum corneum
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Sweat is produced by:
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sudoriferous glands.
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Which of the following is present in thick skin but not in thin skin?
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stratum lucidum
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The function of melanin is to
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Protect skin from ultraviolet light
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Hair and nails are modifications of the
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Epidermis
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The stratum corneum is:
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made up of dead cells.
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Melanocytes
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a) are spidery-shaped cells in contact with cells in the stratum basale
b) Forms structures called melanosomes c) Produces a substance incorporated by other cells |
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Which of the following statements is TRUE regarding the epidermis?
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It is keratinized.
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The "ABCD" signs are used to assess:
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a skin lesion suspected of being a malignant melanoma.
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The average length of time for a cell to be produced by the stratum basale, rise to the surface, become keratinized, and slough off is about how long?
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one month
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A skin condition in which abnormal keratin is produced and keratinocytes are shed prematurely is:
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psoriasis.
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Corpuscles of touch (Meissner's corpuscles) are located in the:
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dermal papillae.
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