|Axillary artery and its branches - anterior view of right upper limb and thorax. (Axillary sheath not labeled, but region is visible.)|
|Gray's||subject #149 586|
The first portion of the axillary artery is enclosed, together with the axillary vein and the brachial plexus, in a fibrous sheath—the axillary sheath—continuous above with the deep cervical fascia. A brachial plexus nerve block can be achieved by injecting anaesthetic into this area.
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