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The axillary artery is accompanied by the axillary vein, [2] which lies medial to the artery, along its length. In the axilla, the axillary artery is surrounded by the brachial plexus. [2] The second part of the axillary artery is the reference for the locational descriptions of the cords in the brachial plexus.
Variations in the Axillary Artery are quite common. Differences in its origin, course, branching pattern, and size may cause variations in the number or arrangement of branches arising from the artery. Additionally, anatomical variations such as accessory or duplicated lateral thoracic arteries have been reported in medical literature.
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.
The axillary sheath is a fibrous sheath that encloses the axillary artery and the three cords of the brachial plexus to form the neurovascular bundle. [1] [2] [3] It is surrounded by the axillary fat. [1] [2] It is an extension of the prevertebral fascia of the deep cervical fascia [citation needed] and is continuous with the carotid sheath at ...
The subscapular artery, the largest branch of the axillary artery, [1] arises from the third part of the axillary artery at the lower border of the subscapularis muscle, which it follows to the inferior angle of the scapula, where it anastomoses with the lateral thoracic and intercostal arteries, and with the descending branch of the dorsal scapular artery (a.k.a. deep branch of the transverse ...
The posterior humeral circumflex artery (posterior circumflex artery or posterior circumflex humeral artery [citation needed]) arises from the third part of the axillary artery at the distal border of the subscapularis.
The NVB (thoracoacromial artery and vein, plus the lateral pectoral nerve) may be the guide for local anesthetic applications in order to achieve pectoral muscle denervation. “Routine botulinum toxin infiltration of the chest wall musculature at the time of mastectomy and immediate reconstruction… would paralyze the muscles and reduce the ...