The heartbeat of a person increases at the time of an interview due to secretion of : (a) Renin (b) Adrenaline (c) ADH (d) ACTH
Option B.At the time of interview heart beat increases due to secretion of adrenaline from adrenal medulla. Adrenaline or epinephrine is secreted in response to stress conditions in the body or when the homeostasis of body is disturbed. It induces fight or flight reactions in the body. It increases alertness, heartbeat and strength of heart contraction.
