The different properties of fast and slow muscle fibres arise from differences in their ______.
A) proportions of actin and myosin
B) types of actin and myosin
C) energy-releasing enzymes
Correct Answer:
Verified
Q2: The neurotransmitter at neuromuscular junctions is _.
A)
Q3: During muscle contraction, the tips of _.
A)
Q4: The cell bodies of alpha motoneurons are
Q5: During a graded muscle contraction _.
A) the
Q6: Muscle spindles are innervated by _.
A) alpha
Q7: Intrafusal muscle fibres are innervated by _.
A)
Q8: Activation of muscle spindles causes _.
A) contraction
Q9: The bodies of sensory nerves are located
Q10: The secondary motor cortex outputs _.
A) only
Q11: The premotor cortex is particularly important in
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