Select Organ System (16) Click to Inspect
Cardiopulmonary

Heart

Sympathetics T1–T5 Cardiac Plexus
Ganglion Cervicothoracic Stellate Ganglion
Parasympathetics Vagus (CN X) Occiput / C1 / C2
Anterior Chapman Point

2nd Intercostal Space, adjacent to the sternum.

Posterior Chapman Point

Between T2 and T3 transverse processes, midway between spinous process and transverse process tip.

High-Yield COMLEX Exam Trigger

Right-sided sympathetics innervate SA node (hyperactivity causes supraventricular tachycardias). Left-sided sympathetics innervate AV node (hyperactivity causes premature ventricular contractions or AV blocks). Left pectoral myofascial trigger point mimics angina.