Question

Write any four differences between S.A. Node and A.V. Node.

Answer 1

S.A. Node	A.V. Node
1- It act as pacemaker.	1- It has no such role.
2- It is found on the wall of the right auricle near the opening of superior vena cava	2- It is found at the right suricle near the interauricular septa.
3- It has maximum rhythm capacity.	3- It ha hass less rythm capacity.
4- It is controlled by the cardiac centers present in the medulla oblongata.	4- It is controlled by cardiac impulse started by S.A. node.