The cervical plexus has afferent and efferent fibers from the segments C-1 to C-4, brachial plexus those from C-5 to C-8 and D-1. For correspondence of pain areas and segmental innervation see “Indications”.
KeywordsCervical Spine Brachial Plexus Cervical Vertebra Cervical Nerve Brachial Plexus Block
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