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.
English Meaning: The name Christa is an English baby name. In English the meaning of the name Christa is: Follower of Christ. Latin Meaning: The name Christa is a Latin baby name. In Latin the meaning of the name Christa is: Follower of Christ.