‘Heart of Heart’ is |
|||||||
a) |
SA-node |
b) |
AV-node |
c) |
Bundle of His |
d) |
Purkinje fibres |
‘Heart of Heart’ is |
|||||||
a) |
SA-node |
b) |
AV-node |
c) |
Bundle of His |
d) |
Purkinje fibres |
(a)
SA-node is located in the right atrial wall below the opening of the superior vena cava. It initiates each cardiac cycle and thereby sets the basic pace of the heart beat, hence, its name is ‘pacemaker’ or ‘heart of heart’.