Human Anatomy - Muscle Tissue - Skeletal + Cardiac + Smooth
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| skeletal muscle tissue - structure | structure - fibers are long, cylindrical, parallel, unbranched, multinucleated, striated (alternating light and dark bands)
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| cardiac muscle tissue - structure | structure - fibers are short, striated, and bifurcated (branched), with one or two centrally located nuclei; intercalated discs between cells (strong gap junctions)
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| smooth (visceral) muscle tissue - structure | structure - fibers are fusiform (spindle-shaped), short, nonstriated, and contain one centrally located nucleus
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| skeletal muscle tissue - function | function - moves skeleton; responsible for voluntary body movements; locomotion; heat production
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| cardiac muscle tissue - function | function - involuntary contraction and relaxation help pump blood on heart
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| smooth (visceral) muscle tissue - function | function - involuntary movements and motion; moves materials through internal organs
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| skeletal muscle tissue - location | location - attaches to bones or sometimes to skin (e.g. facial muscles); also in the voluntary sphincters (lips, urethra, anus)
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| cardiac muscle tissue - location | location - heart walls (myocardium)
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| smooth (visceral) muscle tissue - location | location - walls of hollow internal organs (vessels, airways, stomach, bladder, uterus)
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Created by:
allerlei
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