Axillary sheath | |
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![]() Axillary artery and its branches - anterior view of right upper limb and thorax (axillary sheath not labeled, but region is visible) | |
Anatomical terminology |
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 venous angle. [4]
A brachial plexus nerve block can be achieved by injecting anaesthetic into this area. [5] [6]
This article incorporates text in the public domain from page 586 of the 20th edition of Gray's Anatomy (1918)