This site is intended for healthcare professionals
General Practice Notebook
Medical search

pronator quadratus (anatomy)

FREE subscriptions for doctors and students... click here
You have 3 open access pages.

The pronator quadratus muscle is one of the muscles of the forearm. Anteriorly, it is within the deepest layer it is the most distal. It is quadrangular in shape.

It arises from the distal quarter of the anterior and radial aspect of the ulna. It passes transversely to insert into the distal quarter of the ulnar aspect of the radius.

It is innervated by the median nerve by its anterior interosseous nerve branch (C8, T1).

Pronator quadratus acts to pronate the forearm with the assistance of pronator teres. Also, it helps to maintain the close relationship of the radius and ulna when for example, they are pushed apart by falling onto the outstretched hand.

Links:

General Practice Notebook
General Practice Notebook
The information provided herein should not be used for diagnosis or treatment of any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions. Copyright 2016 Oxbridge Solutions LtdĀ®. Any distribution or duplication of the information contained herein is strictly prohibited. Oxbridge Solutions LtdĀ® receives funding from advertising but maintains editorial independence. GPnotebook stores small data files on your computer called cookies so that we can recognise you and provide you with the best service. If you do not want to receive cookies please do not use GPnotebook.