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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. [9] The axillary nerve is sometimes damaged during surgical procedures of the axilla, such as for breast cancer. It may also be injured by anterior ...
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.
The most commonly involved nerves are the suprascapular nerve, musculocutaneous nerve, and the axillary nerve. [9] [10] The signs of Erb's palsy include loss of sensation in the arm and paralysis and atrophy of the deltoid, biceps, and brachialis muscles. [6] "The position of the limb, under such conditions, is characteristic: the arm hangs by ...
A person was arrested after attempting to climb a temporary fence near the White House this morning, according to a U.S. Secret Service spokesperson. The Secret Service said the person was ...
Human nervous system. Human nervous system – the part of the human body that coordinates a person's voluntary and involuntary actions and transmits signals between different parts of the body. The human nervous system consists of two main parts: the central nervous system (CNS) and the peripheral nervous system (PNS).