The muscle that extends the arm while doing push-ups is the
A) deltoid.
B) pectorals major.
C) brachialis.
D) triceps brachii.
E) biceps brachii.
Answer: D
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What will be an ideal response?
Which muscle fixes the clavicle or elevates the first rib?
A. levator scapulae B. serratus anterior C. pectoralis minor D. subclavius E. rhomboideus major
Mr. Miller has been hospitalized for the flu. The flu virus increases membrane permeability to potassium. You would expect his cells to
A. depolarize. B. repolarize. C. isopolarize. D. hyperpolarize. E. hypopolarize.
The gluteus maximus muscle is named for
A. its size and shape. B. its size and location. C. its attachment and fiber direction. D. its shape and action.