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The heart beat increases at the time of ...

The heart beat increases at the time of interview due to

A

Corticotrophin hormone

B

Hyper secretion of renin

C

Secretion of adrenaline

D

Antidiuretic hormone secretion

Text Solution

Verified by Experts

The correct Answer is:
C
With increase in `CO_(2)` , the sympathetic nerve fiber stimulate SA node by producing adrenaline and nor adrenaline. This compound induces impulse generation by inducing entry of `Ca^(2+)` into cardiac muscles. So heart beat and force of contraction increases.
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