Which are actions of the biceps brachii?

Question

Quizplus · Accepted Answer

The biceps brachii muscle is responsible for flexion of both the arm at the glenohumeral joint and the forearm at the elbow joint. It also assists in supination of the forearm at the radioulnar joints. Option A correctly identifies the actions of the muscle. Option B is incorrect as pronation of the forearm is not an action of the biceps brachii muscle. Option C is incorrect as extension of the arm at the glenohumeral joint is an action of the triceps brachii muscle. Option D is incorrect as the biceps brachii muscle only assists in supination, it is not responsible for pronation of the forearm.

Which Are Actions of the Biceps Brachii