Question

multiple choice question which muscle is responsible for extending the forearm at the elbow? triceps brachii deltoid biceps brachii brachialis

Explanation:

The triceps brachii is the primary muscle responsible for extending the forearm at the elbow joint. The deltoid is mainly for shoulder - related movements, the biceps brachii flexes the forearm, and the brachialis also assists in forearm flexion.

Answer:

Triceps brachii