Question

Explain briefly why Adrenaline is called emergency hormones and it's functions.

Answer 1

Adrenaline is a hormone secreted by adrenal medulla during stress. This is called as emergency hormone because it initiates quick reation which makes the individual to think and respond quickly to the stress. The hormone
increases metabolic rate. there occurs dialation of blood vessels going to heart and the brain. The blood vessels reaching skin and kidneys constrict inorder to provide more blood to the heart and the brain. they also increase fat metabolism thereby synthesising more energy.

What is the function of adrenaline?

Adrenaline triggers the body's fight-or-flight response. This reaction causes air passages to dilate to provide the muscles with the oxygen they need to either fight danger or flee. Adrenaline also triggers the blood vessels to contract to re-direct blood toward major muscle groups, including the heart and lungs. The body's ability to feel pain also decreases as a result of adrenaline, which is why you can continue running from or fighting danger even when injured. Adrenaline causes a noticeable increase in strength and performance, as well as heightened awareness, in stressful times. After the stress has subsided, adrenaline’s effect can last for up to an hour.