In human body, the hormone which is secreted into blood and which controls the rate of heart beat is
[amp_mcq option1=”Adrenaline” option2=”Thyroxine” option3=”Insulin” option4=”Testosterone” correct=”option1″]
This question was previously asked in
UPSC CAPF – 2020
Adrenaline (also known as epinephrine) is a hormone secreted by the adrenal glands that increases the rate and force of heart beats, among other effects.
Adrenaline is part of the body’s “fight or flight” response, preparing the body for physical exertion by increasing cardiovascular activity.