Lab 19 – Flashcards
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transverse tubule
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membranous channel extending inward from muscle fiber membrane
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sarcoplasm
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cytoplasm of a muscle fiber
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fascia
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network of connective tissue that extends throughout the muscular system
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perimysium
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layer of connective tissue that separates a muscle into small bundles called fascicles
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cisterna
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enlarged portion of sarcoplasmic reticulum on either side of a trasverse tubule
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aponeurosis
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broad sheet of connective tissue that attaches coverings of adjacent muscles
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Sarcolemma
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cell membrane of a muscle fiber
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epimysium
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layer of connective tissue that surrounds a skeletal muscle
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endomysium
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layer of connective tissue that surround an individual muscle fiber
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sarcoplasmic reticulum
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cellular organelle in muscle fiber corresponding to the endoplasmic reticulum
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tendon
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cordlike part that attaches a muscle to bone
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myosin
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protein found within thick myofibril
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fascicle
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a small bundle of muscle fibers
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perimysieum
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bundles of muscle fibers called fascicles make up the connective tissue fibers of the
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attach muscle to bone
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tendons are bundles of collagen fibers at the end of a skeletal muscle that
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perimyseum
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the layer of connective tissue that contains blood vessels and nerves is
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actin
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The thin filaments of a sarcomere consist of
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myosin
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the thick filaments of a sarcomere consist of
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Z-lines
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thin filaments at either end of the sarcomere are attached to interconnecting filaments that make up the
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T Tubules
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the command to contract is distributed throughout a muscle fiber by the
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sarcomere
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the command to contract is distributed throughout a muscle fiber by the
