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7 Cards in this Set
- Front
- Back
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Another name for hair or hairs
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Pili or pilus
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the 2 chief regions of a hair
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shaft and root.
shaft projects from the skin, root embedded in the skin. |
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What are the names of the 3 concentric layers of keratinized cells of the hair root.
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1) Medulla in center,large cells & air spaces.2) Cortex,surrounds medulla w/flattened cells. 3) Cuticle outside single, shingled, most keratinized layr
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Where is hair pigment made in the hair?
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Made by melanocytes at the base of the hair follicle.
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What is the papilla?
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The papilla is the nipple like protrusion into the hair bulb, a knot of capillaries that signals the hair to grow.
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In a transverse section of hair,what are the layers, (inside to outside) in the hair.
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Medulla, cortex, cuticle, internal epithelial root sheath, external epithelial root sheath, glassy membrane, conn. tiss. root sheath.
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What are scale-like modifications of the epidermis?
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The nails.
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