|
The role of pace maker in heart is to |
|||
|
a) |
Accelerate blood circulation |
b) |
Inhibit backflow of blood |
|
c) |
Initiate heart beat |
d) |
Stimulate blood pressure |
|
The role of pace maker in heart is to |
|||
|
a) |
Accelerate blood circulation |
b) |
Inhibit backflow of blood |
|
c) |
Initiate heart beat |
d) |
Stimulate blood pressure |
(c)
SA-node is also called as pacemaker or heart, pulsation centre. It is located in the right wall of right atrium below the opening of superior vena cava. SA-node is the main tissue of heart and has highest degree of autorhythmicity. SA-node initiates and regulates the speed of heart beat.