Of the following muscles of the forearm, which one rotates the forearm to turn the palm upwards?
A. supinator
B. triceps brachii
C. brachialis
D. pronator quadratus
E. brachioradialis
A
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What influences the appearance and function of skeletal muscles?
A. Presence of perimysium around fascicles B. Presence of endomysium around muscle cells C. Number of muscle cells in a motor unit D. Pattern in which fascicles are arranged
This is the formula for calculating the diameter of an unknown microscope field.
What will be an ideal response?
The neuromuscular junction consists of ________
A) the axon terminal coming into close proximity to a muscle fiber B) the end branch of a single nerve fiber touching a muscle C) a nerve coming into close proximity to a muscle fiber D) a nerve touching a muscle
As a result of hyperventilation,
A. the body pH decreases. B. the plasma PCO2 level decreases. C. the kidney will increase the rate of hydrogen ion excretion. D. more bicarbonate ions are added to the plasma. E. the plasma PCO2 level increases.