Sunday, June 26, 2011

Cardiac Plexus

The cardiac plexus is a fiber network of the autonomic nervous system, surrounding the base of the heart, chiefly in the epicardium. It is formed by cardiac branches from the vagus nerves and the sympathetic trunks and ganglia. The cardiac plexus is divided into a superficial part, which lies in the concavity of the aortic arch, and a deep part, between the aortic arch and the trachea. However, the two parts are closely connected.