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Anatomy Atlases: Illustrated Encyclopedia of Human Anatomic Variation: Opus III: Nervous System: Plexuses: Nerve to M. Subclavius

Illustrated Encyclopedia of Human Anatomic Variation: Opus III: Nervous System: Plexuses

Nerve to M. Subclavius

Ronald A. Bergman, PhD
Adel K. Afifi, MD, MS
Ryosuke Miyauchi, MD

Peer Review Status: Internally Peer Reviewed

The nerve to subclavius (C5) may supply a branch to the phrenic nerve (accessory phrenic nerve). It joins the phrenic nerve either at the root of the neck or less frequently in the thorax. Rarely, the entire phrenic nerve arises from this branch, in which case it crosses the third part of the subclavian artery.

A branch may communicate with the lateral and medial pectoral nerves, and another may supply the clavicular head of the sternocleidomastoid muscle.

Image 31A Image 31B Image 31C Image 31D Image 31E Image 31F

Image 31G Image 31H Image 31I Image 31J


Anson, B.J., Ed. (1966) Morris' Human Anatomy, 12th ed., The Blakiston Division, McGraw-Hill Book Co., London.

Olivier, E., Minne, -. et -. Rocquet. (1926) La traversée diaphragmatique du nerf phrénique droit et ses variations. Assoc. Anatomistes Comptes Rendus 21:441-444.

Schaefer, E.A., Symington, J. and T.H.Bryce, Eds. (1915) Quain's Anatomy, 11th ed., Longmans, Green, and Co., London.

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