What is a motor unit?
A) all the myofibrils in a muscle fiber
B) all the muscle fibers in a fascicle
C) a muscle fiber and all the motor neurons that innervate it
D) a spinal nerve and all the muscle fibers it innervates
E) a motor neuron and all the muscle fibers it innervates
Correct Answer:
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Q18: What molecule, present primarily within oxidative skeletal
Q19: Which of the following does NOT influence
Q20: The shortening of a skeletal muscle fiber
Q21: The decreased ability of a muscle to
Q22: Calcium binds to calmodulin where?
A)smooth and cardiac
Q24: What is the protein component of the
Q25: In order to allow discrete contractile events
Q26: Where does calcium bind to troponin?
A)skeletal and
Q27: Intercalated disks contain what type of special
Q28: Which of the following stores calcium to
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