What is the function of triceps brachii?

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Multiple Choice

What is the function of triceps brachii?

Explanation:
The function of the triceps brachii is to straighten the elbow. It attaches to the olecranon of the ulna, so when it contracts, it pulls the forearm away from the upper arm, extending the elbow joint. While the long head crosses the shoulder and can assist with shoulder movements, its primary role is elbow extension. Elbow flexion is mainly done by the biceps brachii and brachialis, shoulder abduction by the deltoid, and wrist flexion by the forearm flexors, so those actions aren’t produced by the triceps.

The function of the triceps brachii is to straighten the elbow. It attaches to the olecranon of the ulna, so when it contracts, it pulls the forearm away from the upper arm, extending the elbow joint. While the long head crosses the shoulder and can assist with shoulder movements, its primary role is elbow extension. Elbow flexion is mainly done by the biceps brachii and brachialis, shoulder abduction by the deltoid, and wrist flexion by the forearm flexors, so those actions aren’t produced by the triceps.

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