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. It is surrounded by the axillary fat. It is an extension of the prevertebral fascia of the deep cervical fascia and is continuous with the carotid sheath at the venous angle.
A brachial plexus nerve block can be achieved by injecting anaesthetic into this area.
References
This article incorporates text in the public domain from page 586 of the 20th edition of Gray's Anatomy (1918)
External links
- Anatomy photo:05:01-0200 at the SUNY Downstate Medical Center
- Description at upstate.edu
