teres major muscle

The MRI showed an isolated avulsion of the teres major muscle. There was no involvement of the latissimus dorsi muscle, nor of the teres minor muscle.

Below the lower margin of the teres major muscle, the axillary artery continued as the brachial artery.

INTRODUCTION: Brachial artery is the main source of arterial supply to the arm, it begins as a continuation of axillary artery at the distal border of teres major muscle, and ends at the level of neck of radius by dividing into its terminal branches radial and ulnar arteries.

The axillary artery, a continuation of the subclavian artery, begins at the outer border of the first rib, and ends normally at the inferior border of teres major muscle where onwards it continues as the brachial artery.

The third part lies between the lateral border of the pectoralis minor muscle and the inferior border of the teres major muscle.

Classically, the axillary artery a continuation of the subclavian artery begins at the outer border of the first rib, ending at the inferior margin of the teres major muscle. The pectoralis minor muscle crosses it and divides it into the first (proximal), the second (posterior) and the third (distal) parts.

The axillary artery extends from outer border of first rib to the inferior border of teres major muscle, where it continues as brachial artery.

From the wide attachment fibers of this muscle, a thick mass forms and turns round the inferolateral border of teres major muscle and finally attach to the humeral intertubercular sulcus by a tendinous band with about 7cm long.

The skin paddle was dissected in the plane of Scarpa's fascia, with a superior border between the LD and teres major muscles. The inferior border was located up to 10 cm caudally from the low skin paddle incision and was not required to reach the iliac crest.