Arterial supply to SA node is by: FMGE March 2009

Arterial supply to SA node is by:  FMGE March 2009

a. Left anterior descending coronary artery

b. Postterior interventricular (descending) artery

c. Left coronary artery

d. Right coronary artery

Areas supplied by R coronary a:

• SA node
• AV node
• R atrium
• R ventricle except narrow strip @ ant intraventricular septum
• the Post intraventricular septa