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18 Cards in this Set
- Front
- Back
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Involuntary muscles
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Cardiac
Smooth |
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Intestines
Blood vessels Respiratory |
Smooth (visceral)
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Striated
Multi-nucleated |
Skeletal
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Dense, branched
Single nucleus |
Cardiac
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Cords taper to form tendons
Surround muscle |
Fascia
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Connective sheet
Fibrous tissue |
Aponevrosis
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Surrounds entire skeletal muscle
Under fascia Collagen fibers |
Epimyseum
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Divide muscle into subdivisions/ fibers
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Perimysium
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Involuntary muscles
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Cardiac
Smooth |
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Bundle of muscle fibers
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Fascicle
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Border of cell in fascicle
Interconnect cells |
Endomysium
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Cell membrane of muscle fiber cytoplasm
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Sarcolemma
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Thin filaments
Thick filaments |
Actin
Myosin |
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A bands
I bands |
Myosin
Actin |
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Contraction
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Ca+ + troponin
Shorten fibers |
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Relaxation
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Troponin + tropomyosin
Separate fibers |
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Acetycholine
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Stimulate sarcolemma
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Acetocholinesterase
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Relaxtion
Reduce Ca+ ions bind to troponin |
