No
cardiac muscle
the 3 types of mucsles are cardiac,smooth,skelatal mucsle.
Smooth and cardiac muscles are involuntary .... Skeletal muscles are voluntary .
Yes, because of the short refractory period of skeletal muscle (compared to cardiac muscle), skeletal muscle can be restimulated before the muscle is completely relaxed. If repeated enough times, the contractions fuse together i.e. they become tetanised.
your penis
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femur
No
its your carve mucsle
the gluteals
age and muscle mass
hamstring