The Biceps Brachii _______

Question

The biceps brachii _______.
A) flexes the elbow
B) rotates the arm medially
C) flexes the trunk
D) flexes the knee

Accepted Answer

The biceps brachii muscle is responsible for flexing the elbow joint. Rotation of the arm medially is the function of another muscle, the subscapularis. The biceps brachii has no role in flexing the trunk or knee.