<prompt> Flexion, adduction and medial rotation of arm is done by which muscle?Pectoralis minorPectoralis majorSubclaviusSerratus Anterior  <response>: 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 