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skeletal muscle
- long, thin, cylindrical in shape
- multinucleated
- attached to bone & skin
- voluntary
- striated
,cardiac muscle
- short, fat, branched
- uninucleated
- in heart
- attached to intercalated discs
- involuntary
- striated
smooth muscle
- in hollow organs
- ininucleated
- involuntary
- lack striations
,excitability
responsiveness to chemical signals, stretch, and electrical changes
across the plasma membrane
conductivity
local electrical excitation sets off a wave of excitation that travels along
the muscle fiber
contractility
shortens when stim
, extensibility
capable of being stretched b/w contractions
elasticity
returns to its original rest length after being stretched
organization of skeletal muscle
microfilaments, myofibril, muscle fiber, muscle fascicle, and skeletal
muscle