When an animal is angry and wants to fight; the hormone that is secreted is

Assertion : Our body secretes adrenaline in intense cold.
Reason : Adrenaline raises metabolic rate

Injury to adrenal cortex is not likely to affect the secretion of which one of the following?

After receiving a hormonal shot, an asthma patient will get relief in exhaling the air. The hormone injected will be

Fight­or­flight reactions cause activation of