|
The function of vagus nerve innervating the heart is to |
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|
a) |
Initiate the heart beat |
b) |
Reduce the heart beat |
|
c) |
Accelerate the heart beat |
d) |
Maintain constant heart beat |
|
The function of vagus nerve innervating the heart is to |
|||
|
a) |
Initiate the heart beat |
b) |
Reduce the heart beat |
|
c) |
Accelerate the heart beat |
d) |
Maintain constant heart beat |
(b)
The vagus nerves (parasympathetic) supply mainly the SA and AV-node and atrial muscles. The parasympathetic stimulation reduces the rate at which impulses are produced, decreasing the rate and force of the heart beat.