Image: The cardiac conduction system. The SA node is the natural pacemaker of the heart. You may have heard of permanent pacemakers (PPMs) and temporary pacing wires (TPWs) which are used when the SA node has ceased to function properly.
Grace [grace] as a girls' name is pronounced grayce. It is of Latin origin, and the meaning of Grace is favor, blessing. From grtia. A virtue name introduced by the Puritans, referring to God's grace. It has the same meaning as Anna and Hannah and may be used as a variation of these. In Ireland it is used as an anglicization of Grainne.
Grace is a very popular first name for women (#114 out of 4276, Top 3%) and also a very popular surname for both adults and children (#1200 out of 150436, Top 1%). (2000 U.S. Census). Presented below is the baby name popularity of Grace for girls.race is a very popular first name for women (#114 out of 4276, Top 3%) and also a very popular surname for both adults and children (#1200 out of 150436, Top 1%). (2000 U.S. Census). Presented below is the baby name popularity of Grace for girls.