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20 Cards in this Set
- Front
- Back
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Epithelium
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sheetlike tissue with free surface facing the outside environment or a body fluid.
-simple=one layer -Stratifyed-two or more -Make absorb and secret substances |
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tight junctions
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prevent cells from leaking across tissue
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adhering junctions
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cement neighboring cells together
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gap junctions
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open channels between cytoplasm of abutting cells
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exocrine glands
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secrete mucus, saliva, earwas, oil, milk, digestive enzymes, and other cell products. get stuff out of body
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endocrine glands
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no ducts hormmones ususally enter bloodstream.
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All connective tissue...
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secrete coolage or elastin...fibers of structual proteins
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loose connective tissue
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fibers and fibrobalasts. loosely arranged in semifluid structure. *framework of epithelium
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Dense, irregular connective tissue
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mainly dominated by fibers and fibroblasts. in skin and capsules around some organs for structural supports
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dense regular tissue
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fibers in parallel rows. tendons and ligaments for strenght and elasticity
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cartilige
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pliable yet solid. resists compression. support flexion, lowfriction surface for joint movements
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bone tissue
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hardend mineral. protect softer tissue organs. production of blood.
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adipose tissue
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fat storage, insulation
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skeletal muscle tissue
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main tissue of muscle attatched to bones. actin and myosin. cylindrical long contractile cells.
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smooth muscle
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tappered cells. not striated. inside soft internal organs controlled constriction motility. arterial blood flow
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cardiac muslce tissue`
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only in heart. contract as unit. uneven striated fused together cylindrical cells.
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neuroglia
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protect and support the neurons structurally and metbolically
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ectoderm
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gives rise to the skins outer layer and to the nervous system's tissues
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mesoderm
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muscles and bones and circulatory reproductive and urinary
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endodoerm
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lining of digestive tract and organs to be dirived from
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