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16 Cards in this Set
- Front
- Back
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muscle properties (4)
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contractility, excitability, elasticity,extensibility
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skeletal muscle features (3)
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striated, voluntary, multinucleated
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skeletal muscle levels of organization
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myofibril > fibers (myocytes) > fascicles > muscle
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myofibril proteins (3)
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contractile (actin + myosin), regulatory (troponin, tropomyosin), structural (titin, myomesin, dystrophin)
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muscle fiber types (3)
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slow oxidative (type I), fast oxidative-glycolytic (type IIA), fast glycolytic (type IIB)
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actin-myosin binding
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Ca bind to troponin, moves tropomyosin, binding site exposed, myosin binds
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cardiac muscle features (3)
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striated, involuntary, uninucleated
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cardiac muscle structure
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branched, intercalated discs, gap junctions, slow Ca channels
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cardiac muscle receptors
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beta-1 and muscarinic
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smooth muscle features (3)
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unstriated, involuntary, uninucleated
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smooth muscle structure
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no myofibrils, no T tubules, fusiform
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smooth muscle receptors
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muscarinic, alpha, beta-1
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smooth muscle types (2)
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multi unit (individual control, neurogenic), single unit (autorhythmicity, myogenic)
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sarcomere components
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Z line, M line, I band, A band, H zone
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I band
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actin (thin filament), light
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A band
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myosin (thick filament), dark
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