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.
The âChristianâ Churchâs Definition of the word âGraceâ. The word âGraceâ according to Bible scholars and theologians means âunmerited favorâ  the concept that none of us in the human race deserve to be saved because we are all wretched sinners.Graceâ is the OPPOSITE of âworksâ. Ephesians 2:8 also tells us that âgraceâ and âfaithâ are the opposite of âworks.â. If we are NOT saved by any type of âworksâ then that means that our salvation is ALL of God and NONE of us! It means that GOD is TOTALLY responsible for our salvation  and we are NOT.