MEDICAL PHYSIOLOGY

PHYSIOLOGY

CARDIOVASCULAR PHYSIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is it called when adrenalin causes your heart rate to increase before you start activity?
A
Nervous twitch
B
Excitement rise
C
Anticipation
D
Anticipatory rise
Explanation: 

Detailed explanation-1: -When you are about begin exercising, your heart rate will likely increase before you begin moving. The phenomenon is called the ‘anticipatory rise’.

Detailed explanation-2: -An increase in heart rate that typically occurs just before an activity is to be undertaken. It results from an increase in activity of the sympathetic nervous system causing the adrenal glands to release adrenaline and noradrenaline into the blood stream.

Detailed explanation-3: -Adrenaline is a hormone which results in an increase in heart rate, blood pressure and alertness. anticipatory rise.

Detailed explanation-4: -We also know that there are specific sites on the cells of major organs, including the heart, called beta receptors, which respond to the adrenaline when it is released, by increasing the heart rate.

There is 1 question to complete.