Credit Joshua Lott for The New York Times. 1  Three years ago, a labor leader named Marty Beil was one of the loudest opponents of Gov. Scott Walkerâs âbudget repair bill,â a proposal that brought tens of thousands of protesters out to the Wisconsin State Capitol in Madison in frigid February weather.
epitrochlear. (anatomy). Of or pertaining to a lymph node that lies above the trochlea of the elbow joint. 1  Facebook. 2  Twitter.
The sinus node consists of a cluster of cells that are situated in the upper part of the wall of the right atrium (the right upper chamber of the heart). The electrical impulses are generated there. The sinus node is also called the sinoatrial node or, for short, the SA node. The electrical signal generated by the sinus node moves from cell to cell down through the heart until it reaches the atrioventricular node (AV node), a cluster of cells situated in the center of the heart between the atria and ventricles.