Stack #20487
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each of the black spaces below before clicking
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| skeletal muscle tissue | striated, voluntary (ex. found in biceps)
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| cardiac muscle tissue | striated, involuntary , only found in heart
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| smooth muscle tissue | nonstriated (smooth) involuntary (ex. found in digestive system, arteries, intestine)
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| functions of skeletal muscle | produce body movement, stabilize body position, storing and moving substances within the body (ATP), generating heat (thermogenesis=shiverring)
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| properties of muscle tissue | electrical excitability, contractilily, extensibility, elasticity
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| superficial fascia | aka subcutaneous layer, separates muscle from skin
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| deep fascia | holds muscles with similar functions together
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| 3 layers of connective tissue | epimysium, perimysium, endomysium
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| epimysium | surrounds whole muscle
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| perimysium | surrounds muscle bundles
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| endomysium | surrounds individual muscle fibers
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| tendon | all 3 layers of connective tissue connect at each end of a muscle and form this
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| NMJ | neuromuscular junction; where muscle fiber and nerve (neuron) connect and communicate
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| sarcolema | plasma (cell) membrane of muscle fiber
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| Transverse tubules (T tubules) | extend from sarcolemma into sarcoplasm
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| sarcoplasm | the cytoplasm of skeletal muscle fiber
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| myofibrils | cylindrical structures within each muscle fiber, contains bundles of thick and thin myofilaments
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| sarcoplasmic reticulum | "sleeve covering myofibril"; network of membranous channels surrounding each myofibril
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| terminal cisternae | surrounds T tubule- expanded ends of SR on either side of T tubule; 2 to a tubule
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| filaments | short protein structures arranged into sarcomeres consisting of thin actin and thick myosin filaments
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Created by:
ShellyA&P
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