Teres major muscle

Teres major muscle

The teres major muscle is a muscle of the upper appendage. It joins to the scapula and the humerus and is one of the seven scapulohumeral muscles. It is a thick yet to some degree leveled muscle.

The teres major muscle (from Latin teres, signifying "adjusted") is situated over the latissimus dorsi muscle and aids the expansion and average revolution of the humerus. This muscle is regularly befuddled as a rotator sleeve muscle, yet it isn't on the grounds that it doesn't append to the container of the shoulder joint, dissimilar to the teres minor muscle for instance.

Structure

The teres major muscle starts on the dorsal surface of the substandard point and the lower some portion of the horizontal outskirt of the scapula.

The strands of teres significant supplement into the average lip of the intertubercular sulcus of the humerus.

It is provided basically by the lower subscapular nerve and furthermore by the thoracodorsal nerve (center subscapular nerve). These are distal to the upper subscapular nerve. These three nerves branch off the back line of the brachial plexus. The nerves that innervate teres significant comprise of strands from spinal nerves C5-C8.

Relations 

The ligament, at its addition, lies behind that of the latissimus dorsi, from which it is isolated by a bursa, the two ligaments being, in any case, joined along their lower outskirts for a short separation. The strands of these two muscles run parallel to one another and the two muscles embed at the peak of the lesser tubercle of the humerus (likewise portrayed as the average lip of the intertubercular sulcus).

Together with teres minor muscle, teres real muscle frames the axillary space, through which a few critical supply routes and veins pass.

Capacity

The teres major is an average rotator and adductor of the humerus and helps the latissimus dorsi in illustration the recently raised humerus downwards and in reverse (expansion, however not hyper augmentation). It additionally settles the humeral head in the glenoid depression.

Damage

Disconnected teres real wounds are uncommon. They are only experienced in expert and abnormal state recreational competitors—baseball pitchers specifically. These wounds can be incapacitating, requiring protracted restoration periods and missed periods of sports. No reasonable signs for careful treatment exist. Results have been commonly great after both nonoperative and usable treatment.