Immediately following the arrival of the stimulus at a skeletal muscle cell there is a short period called the ________ period during which the neurotransmitter is released by exocytosis, diffuses across the synaptic cleft, and binds to its receptors. A) contraction B) latent C) relaxation D) refractory

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Immediately following the arrival of the stimulus at a skeletal muscle cell there is a short period called the ________ period during which the neurotransmitter is released by exocytosis, diffuses across the synaptic cleft, and binds to its receptors.
A) contraction
B) latent
C) relaxation
D) refractory

 
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What does excess postexercise oxygen consumption represent? A) the amount of oxygen taken into the body immediately after the exertion B) the difference between the amount of oxygen needed for totally aerobic muscle activity and the amount actually used C) the amount of oxygen equal to the oxygen already used D) amount of oxygen needed for aerobic activity to accomplish the same amount of work

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What does excess postexercise oxygen consumption represent?
A) the amount of oxygen taken into the body immediately after the exertion
B) the difference between the amount of oxygen needed for totally aerobic muscle activity and the amount actually used
C) the amount of oxygen equal to the oxygen already used
D) amount of oxygen needed for aerobic activity to accomplish the same amount of work

 
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Myoglobin ________. A) is a protein involved in the direct phosphorylation of ADP B) produces the end plate potential C) stores oxygen in muscle cells D) breaks down glycogen

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Myoglobin ________.
A) is a protein involved in the direct phosphorylation of ADP
B) produces the end plate potential
C) stores oxygen in muscle cells
D) breaks down glycogen

 
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Which of the following is a factor that affects the velocity and duration of muscle contraction? A) number of muscle fibers stimulated B) load on the fiber C) size of the muscle fibers stimulated D) muscle length

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Which of the following is a factor that affects the velocity and duration of muscle contraction?
A) number of muscle fibers stimulated
B) load on the fiber
C) size of the muscle fibers stimulated
D) muscle length

 
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