Teres Major Muscle

Friday, October 14, 2011

The teres major is a thick muscle of the upper arm. Along with the latissimus dorsi muscle, it forms the back part of your armpit. The teres major arises from the posterior and inferior angle of the scapula and goes straight across to the front of the shoulder, attaching to the front of the humerus. It is supplied by the subscapular and circumflex scapular arteries and innervated by the lower subscapular nerve.