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.
Meaning of Olivia. Biblical name. In Biblical, the name Olivia means-peace-of the olive tree. Other origins for the name Olivia include-Biblical, Spanish, Italian.The name Olivia is most often used as a girl name or female name.Biblical Name Meaning-peace-of the olive tree.iblical name. In Biblical, the name Olivia means-peace-of the olive tree. Other origins for the name Olivia include-Biblical, Spanish, Italian.The name Olivia is most often used as a girl name or female name. Biblical Name Meaning-peace-of the olive tree.