What is the action of the brachialis?Multiple choice question.extends elbowsupinates forearmflexes elbow
Question
What is the action of the brachialis?
- extends elbow
- supinates forearm
- flexes elbow
Solution
Analysis of Options
- Extends elbows: This action is primarily performed by the triceps brachii, not the brachialis.
- Supinates forearm: Supination is mainly the function of the biceps brachii and supinator muscles; the brachialis does not primarily perform this action.
- Flexes elbow: The brachialis is a powerful flexor of the elbow. It works in conjunction with the biceps brachii during elbow flexion but functions independently of forearm position.
Conclusion
The primary action of the brachialis is to flex the elbow.
Final Answer
Flexes elbow
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