Accessory Structures of the Skin
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Created by:
fl_deva on September 18, 2011
Subjects:
a&p integumentary system and structure
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16 terms
Terms | Definitions |
|---|---|
 apocrine sweat glands | Sudoriferous glands located in axillary and genital areas; become active after puberty. |
| papilla of hair | Connective tissue projection; provides blood supply for hair matrix. |
| Hyponychium | Secures nail to digit |
| Hair follicle | Epithelial layer that surrounds hair root. |
| Nail body | Part of nail that is visible |
| Sebaceous gland | Secretes sebum (oil) onto hair and skin |
| Free edge | Part of nail that extends beyond digit. |
| Hair bulb | Part of hair that contains the matrix |
| Eccrine sweat gland | Sudoriferous glands that deposit sweat onto epidermal ridges causing fingerprints |
| Hair shaft | Part of hair in epidermis and extending beyond skin surface. |
| arrector pilli muscle | Moves hair shaft perpendicular to skin; causes goose bumps. |
| Cuticle | Thickened epithelial tissue at proximal end of nail body. |
| Lunula | Crescent'shaped area of nail body near cuticle. |
| Hair Root | Part of hair within dermis |
| Nail root | Part of nail within skin |
| Nail matrix | Part of nail, deep to nail root, that produces new cells, causing the nail to grow. |
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