31. The female tarsier has multiple sets of breasts, but the only functional set is at the pectoralis . 32. Developments continue in replacing lost arms with cybernetic replacements by using nerves normally connected to the pectoralis muscles. 33. In cursorial animals, the thorax is hanging between the scapulae at the serratus anterior and pectoralis muscles. 34. Two or three branches pierce the muscle and end in the sternocostal head of the pectoralis major muscle. 35. Often, the tenderloin ( pectoralis minor ) is marketed separately from the breast ( pectoralis major ). 36. Often, the tenderloin ( pectoralis minor ) is marketed separately from the breast ( pectoralis major ). 37. On July 30, starting Left Defensive End Devon Kennard underwent surgery for a torn pectoralis major muscle. 38. The base of each breast is attached to the chest by the deep fascia over the pectoralis major muscles. 39. Birds have two main muscles in their wing that are responsible for flight : the pectoralis and the supracoracoideus. 40. The pectoralis is the largest muscle in the wing and is the primary depressor and pronator of the wing.