Question

Adrenal medullary hormones _______________ the heart rate.

• A. increase
• B. decrease
• C. stabilize
• D. has no impact on

Answer 1

The correct option is A increase

The adrenal glands are located on top of the kidney. The adrenal medulla, the inner part of an adrenal gland, controls hormones that initiate the flight or fight response. The main hormones secreted by the adrenal medulla include epinephrine (adrenaline) and norepinephrine (noradrenaline).
They have similar functions among other things, these hormones are capable of increasing the heart rate and force of heart contractions, increasing blood flow to the muscles.