With respect to the fl exion of the forearm, which of the following statements is correct? A. the origin of the biceps brachii is on the radius and its insertion is on the scapula B. the origin of the biceps brachii is on the ulna and its insertion is on the scapula C. the agonist muscle is the biceps brachii and the antagonist is the triceps brachii D. the agonist muscle is the biceps brachii and the antagonist is the brachialis
Option C. The correct statement is:- The agonist muscle is the biceps brachii and the antagonist is the triceps brachii. Antagonist for flexion is the triceps brachii. (the origin, now no longer the insertion of the biceps brachii is at the scapula).
