Multiple Choice
Which muscle contracts to extend the elbow?
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10. Muscles
Muscle Actions
Multiple Choice
Which of the following muscles does not flex the forearm?
A
Brachialis
B
Biceps brachii
C
Brachioradialis
D
Triceps brachii
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Verified step by step guidance1
Identify the primary function of each muscle listed in the problem.
Understand that the brachialis, biceps brachii, and brachioradialis are all involved in flexing the forearm.
Recognize that the triceps brachii is primarily responsible for extending the forearm, not flexing it.
Recall that flexion refers to the action of decreasing the angle between two body parts, such as bending the elbow.
Conclude that the triceps brachii does not participate in flexing the forearm, as its function is to extend the elbow joint.
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