Question

Which of the following hormones increase alertness, piloerection and sweating ?

• A. Catecholamines
• B. Cortisol
• C. Thymosin
• D. TCT

Answer 1

The correct option is A Catecholamines

The adrenal medulla secretes two hormones called adrenaline or epinephrine and noradrenaline or norepinephrine. These are commonly called as $\text{catecholamines.}$
Adrenaline and noradrenaline are rapidly secreted in response to stress of any kind and during emergency situations and are called emergency hormones or hormones of Fight or Flight.
These hormones increase alertness, pupillary dilation, piloerection (raising of hairs), and sweating. Both the hormones increase the heartbeat, the strength of heart contraction and the rate of respiration.
Cortisol is known as life saving hormone released by adrenal gland which is released during stress condition and thymosin is the hormone of thymus gland which is responsible for the production of T-cells.