Flexion, adduction and medial rotation of arm is done by which muscle?: (A) Pectoralis minor, (B) Pectoralis major, (C) Subclavius, (D) Serratus Anterior
Answer is B. Ans. B Pectoralis majorAnatomy of pectoralis major muscle:* Origin: Clavicle, sternum and costal cartilage 2nd - 6th ribs* Insertion: Lateral lip of intertubercular groove of humerus* Function: Flexion, adduction and medial rotation of arm