Axillary sheath

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Axillary sheath
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 first portion of the axillary artery, together with the brachial plexus .The axillary vein lies entirely outside the sheath[1]). It is an extension of the prevertebral fascia of the deep cervical fascia.

A brachial plexus nerve block can be achieved by injecting anaesthetic into this area.[2]


This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

  1. ^ Last's Anatomuy, 9th Edt
  2. ^ Ay; Akinci, M.; Sayin, M.; Bektas, U.; Tekdemir, I.; Elhan, A. (2007). "The axillary sheath and single-injection axillary block". Clinical Anatomy. 20 (1): 57–63. PMID 16372345. doi:10.1002/ca.20270. 

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