Term
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Definition
| a group of cells which act together to perform a specific function |
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Definition
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Term
| general composition of tissues |
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Definition
| cells and intercellular matric |
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Term
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Definition
-consists of cells held together closely by adhesions resting on a basement membrane
-highly cellular, very little intercellular material
-avascular (not penetrated by blood vessels); receives nutrients by diffusion from underlying tissue |
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Term
| functions of membranous epithelium |
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Definition
-protection (covers body surfaces)
-lines body cavities (digestive tract, blood vessels)
-contains cells for sensory perception (receptors for pain, temp, touch)
-absorption and secretion of nutrients and other products
-filtration (kidney) |
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Term
| function of glandular epithelium |
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Definition
| -production and secretion of various hormones and substances |
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Term
| epithelium is further classified by |
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Definition
-number of cell layers
-shape of cells
-special characteristics |
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Definition
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Definition
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Term
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Definition
| -considered a single layer since each contacts the basement membrane |
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Term
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Definition
| squamous, cuboidal, columnar |
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Term
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Definition
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Definition
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| special characteristic of epithelia |
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Definition
| cilia and keratin (tough waterproof protein) |
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Term
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Definition
| secrete hormones directly into bloodstream |
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Term
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Definition
| secrete products through a duct to the site of action |
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Term
| unicellular exocrine gland |
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Definition
| goblet cell produces mucous (self destructs to secrete) |
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Term
| multicellular exocrine gland |
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Definition
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Term
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Definition
-one thin layer used for exchange
-found in blood vessels and alveoli |
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Term
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Definition
-one thin layer used for exchange
-found in blood vessels and alveoli |
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Term
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Definition
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Term
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Definition
-single layer of cells for exchange
-room for organelles
-found in digestive tract (intestines/stomach) |
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Term
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Definition
-found in beginning/end of GI tract
-esophagus, vagina, and skin |
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Term
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Definition
-glandular epithelium
-found in voicebox |
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Term
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Definition
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Term
| pseudostratified ciliated columnar |
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Definition
-found in respiratory
-nasal cavity, trachea, and bronchi |
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Term
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Definition
-used for stretching organs
-cells that change shape (bladder, uterus) |
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