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.
From the English word grace, which ultimately derives from Latin gratia. This was one of the virtue names created in the 17th century by the Puritans.The actress Grace Kelly (1929-1982) was a famous bearer.rom the English word grace, which ultimately derives from Latin gratia. This was one of the virtue names created in the 17th century by the Puritans.