If a bicep was cut so that it no longer attached to bone, why would this limit motion of the upper arm?
A. The biceps and triceps antagonize one another in the motion of the arm; cutting removes one antagonist.
B. The bicep is where the arm connects to all relevant nerve cells.
C. The bicep is the main muscle for moving the arm.
D. The other arm muscles all connect to the bicep and would also become detached as a result.
E. None of the answer choices is correct.
A. The biceps and triceps antagonize one another in the motion of the arm; cutting removes one antagonist.
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