The Brachialis and Brachioradialis

Question

The brachialis and brachioradialis
A) flex the forearm at the elbow.
B) extend the hand.
C) are antagonistic to the biceps brachii.
D) shrug the shoulders.

Accepted Answer

The brachialis and brachioradialis are both located in the arm and work together to flex the forearm at the elbow joint. They are not involved in extending the hand or shrugging the shoulders, and are not antagonistic to the biceps brachii.