This site is intended for healthcare professionals

Sign in
Go to /sign-in page

You can view 5 more pages before signing in

Innervation

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

Pectoralis major is supplied by fibres from all segments of the brachial plexus and hence pectoralis major function may be an index of brachial plexus damage. The individual nerves are:

  • medial pectoral nerve (C8, T1), so titled because of its origin from the medial cord of the plexus
  • lateral pectoral nerve (C5, C6, C7), from the lateral cord of the plexus

The clavicular part of the muscle is largely supplied by C5 and C6. The sternocostal part is innervated by C7, C8 and T1.

The afferent supply from the skin overlying pectoralis major passes to thoracic nerve roots T2 to T6.

Create an account to add page annotations

Create a free account

Add information to this page that would be handy to have on hand during a consultation, such as a web address or phone number. This information will always be displayed when you visit this page

The content herein is provided for informational purposes and does not replace the need to apply professional clinical judgement when diagnosing or treating any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions.

Connect

Copyright 2024 Oxbridge Solutions Limited, a subsidiary of OmniaMed Communications Limited. All rights reserved. Any distribution or duplication of the information contained herein is strictly prohibited. Oxbridge Solutions receives funding from advertising but maintains editorial independence.