The Difference in the Action When Comparing the Biceps Brachii

question 106

Multiple Choice

The difference in the action when comparing the biceps brachii to the flexor carpi radialis, is

• A) one muscle flexes the hand at the wrist and the other flexes the entire forearm.
• B) one muscle flexes the arm and the other extends the arm.
• C) one moves the ulna and the other moves the radius.
• D) one of these muscles is voluntary while the other is involuntary.
• E) the shapes of the two muscles differ.

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