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The lower subscapular nerve contains axons from the ventral rami of the C5 and C6 cervical spinal nerves. [2] [3] It is the third branch of the posterior cord of the brachial plexus. [4] [5] It gives branches to 2 muscles: subscapularis muscle. [2] It usually gives 4 branches to innervate the subscapularis, and can give up to 8 branches. [1 ...
Subscapular nerves can refer to: Upper subscapular nerve; Thoracodorsal nerve (middle subscapular nerve) Lower subscapular nerve; The subscapular nerves originate from the posterior cord of the brachial plexus. These nerves are part of a group of nerves that innervate the muscles that move the scapula. The upper subscapular nerve innervates the ...
The subscapularis is covered by a dense fascia which attaches to the scapula at the margins of the subscapularis' attachment (origin) on the scapula. [1] The muscle's fibers pass laterally from its origin before coalescing into a tendon of insertion. [citation needed] The tendon intermingles with the glenohumeral (shoulder) joint capsule. [1]
The thoracodorsal nerve is a nerve present in humans and other animals, also known as the middle subscapular nerve or the long subscapular nerve. It supplies the latissimus dorsi muscle . [ 1 ] [ 2 ]
The upper (superior) subscapular nerve is the first branch of the posterior cord of the brachial plexus. The upper subscapular nerve contains axons from the ventral rami of the C5 and C6 cervical spinal nerves. It innervates the superior portion of the subscapularis muscle.
Teres major is supplied primarily by the lower subscapular nerve [4] and additionally by the thoracodorsal nerve (middle subscapular nerve). These are distal to the upper subscapular nerve. These three nerves branch off the posterior cord of the brachial plexus. The nerves that innervate teres major consist of fibers from spinal nerves C5-C8. [4]
Dorsal scapular nerve syndrome can be caused by nerve compression syndrome.A winged scapula is the most common symptom. [7] Shoulder pain may occur. [7] It causes weakness in rhomboid major muscle, rhomboid minor muscle, and levator scapulae muscle. [7]
The nerve lies at first behind the axillary artery, [4] and in front of the subscapularis, [1] and passes downward to the lower border of that muscle.. It then winds from anterior to posterior around the neck of the humerus, in company with the posterior humeral circumflex artery, [2] through the quadrangular space (bounded above by the teres minor, below by the teres major, medially by the ...