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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 ...
The quadrangular space is a clinically important anatomic space in the arm as it provides the anterior regions of the axilla a passageway to the posterior regions. In the quadrangular space, the axillary nerve and the posterior humeral circumflex artery can be compressed or damaged due to space-occupying lesions or disruption in the anatomy due to trauma.
upper subscapular nerve: C5-C6: subscapularis muscle of the rotator cuff: lower subscapular nerve: C5-C6: subscapularis muscle, teres major muscle thoracodorsal nerve: C6-C8: latissimus dorsi muscle axillary nerve: C5-C6: sensation to the shoulder and motor to the deltoid muscle and the teres minor: radial nerve: C5-C8, T1
These neuromuscular segments are supplied by smaller branches of the axillary nerve, and work in coordination with other muscles of the shoulder girdle include pectoralis major and supraspinatus. [10] The axillary nerve is sometimes damaged during surgical procedures of the axilla, such as for breast cancer. It may also be injured by anterior ...
Inferior lateral cutaneous nerve of arm - Near blue "axillary" area, but actually branches from radial nerve. Most modern sources distinguish the superior and inferior, but some still include a single "lateral brachial cutaneous nerve". ) Intercostobrachial nerve (brown) Medial cutaneous nerve of arm (yellow) - labeled as "medial brachial ...
The axillary nerve is located at the proximal end, against the shoulder girdle. Dislocation of the humerus's glenohumeral joint has the potential to injure the axillary nerve or the axillary artery. Signs and symptoms of this dislocation include a loss of the normal shoulder contour and a palpable depression under the acromion.
NFL Network's Ian Rapoport added that Watson, a second-round draft pick in 2022, suffered additional damage and his ability to begin next season — the final one of his rookie contract ...
The axillary nerve is injured in 37% making it the most commonly injured structure with this type of injury. [14] Other common, associated, nerve injuries include injury to the suprascapular nerve (29%) and the radial nerve (22%). [14] Axillary nerve damage results in a weakened or paralyzed deltoid muscle and as the deltoid