Triangle of sinuatrial node
Trigonum nodi sinuatrialis
Definition
The sinoatrial node is a group of cells positioned in the wall of the right atrium just lateral to the junction where the superior vena cava enters the right atrium (Triangle of sinuatrial node).
References
This definition incorporates text from the wikipedia website - Wikipedia: The free encyclopedia. (2004, July 22). FL: Wikimedia Foundation, Inc. Retrieved August 10, 2004, from http://www.wikipedia.org