Term
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Definition
| Derived from mesodermal layer of embryonic germ cells. |
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Term
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Definition
| Long striated cells with multiple nuclei. Voluntary movements. |
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Term
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Definition
| Long, spindle-shaped cells, each with a single nucleus. |
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Term
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Definition
| Branching, striated cells fused at plasma membranes |
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Term
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Definition
| Sheath of dense connective tissue surrounding the nerve |
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Term
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Definition
| Epineurium which surrounds bundles of nerve fibers. |
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Term
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Definition
| Thin layer of loose connective tissue, surrounds the individual nerve fibers. |
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Term
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Definition
| Retain ducts to body surfaces. Products collect in duct of gland and flow toward surface which the duct is in contact with. |
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Term
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Definition
| The "ductless" glands. Released across cell membrane into interstitial spaces. Product diffuses into capillaries next. |
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Term
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Definition
| A mucus secreting unicellular exocrine gland. |
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Term
| Classification of Exocrine glands |
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Definition
| Ducts - Simple or compound; Secretory units - tubular, alveolar (acinar) or tubuloalveolar. |
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Term
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Definition
| Membrane-bound secretory vesicle internal to the cell. Fuse with apical surface to release product. |
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Term
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Definition
| Secretory product is a pinched off portion of cell. Part of mammary glands (breast feeding) |
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Term
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Definition
| Secretory cell is released and breaks apart and becomes the product. Sweat glands, pubic areas, areoli of breats and Sebaceous glands use this type. |
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Term
| Tight junctions (Zona Occludens) |
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Definition
| Formed by claudin and occludin proteins, join the cytoskeletons of adjacent cells. Aim to preserve transcellular transport. |
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Term
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Definition
| 2 disc-like plaques connected across intercellular space. Plaques joined b proteins called cadherins. |
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Term
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Definition
| Passageway between adjacent cells. Connected by hollow cylinders of protein. Allow small molecules through |
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Term
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Definition
| Formed by the basal lamina and some underlying reticular fibers |
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Term
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Definition
| Epithelial cells lie on basal lamina (protein sheet). Acts as a filter, can regenerate. |
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Term
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Definition
| Derived from the mesoderm |
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