BI 231 - Anatomy and Physiology 1 (Gan)

Teres major – posteriorly extends humerus; adducts humerus. Trapezius – raises, retracts, & rotates scapula. Zygomaticus - smiling. Arm & forearm muscles. Biceps brachii – forearm flexor & supinates forearm e.g. opening a bottle of wine. Brachialis – forearm flexor (lifts ulna as biceps lifts radius) ................
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