Question

Adrenaline is an emergency hormone. Why?

Answer 1

In multicellular animals, a hormone is any member of a class of signalling molecules that are delivered to distant organs to affect physiology and behaviour. Animals, plants, and fungi all require them for proper development. They allow organs and tissues to communicate with one another. Eicosanoids, steroids, amino acid derivatives, and proteins/ peptide are all examples of hormones. Hormones regulate various physiological and behavioural processes in vertebrates, including digestion, metabolism, respiration, sensory perception, sleep, excretion, stress induction, growth and development, locomotion, reproduction, and so on.

Complete explanation:
The Emergency hormone is the name given to the adrenaline hormone.
The adrenal medulla secretes adrenaline hormone at times of stress or emergency, and it is thus known as the emergency hormone. Adrenaline is released into the bloodstream during an emergency. This secretion reacts to a specific target organ, such as the lungs, heart, blood pressure, metabolism, and other similar activities. The heart begins to beat rapidly as a result of the release of adrenaline, providing a rush of oxygen to the muscles. This flurry of oxygen delivery to muscles has an effect on the lungs, causing the diaphragm and rib muscles to contract rapidly. Blood flows to the skin and the digestive system is reduced. As a result of the tightening. The arteries that supply these muscles have a tendency to enhance blood flow to the skeletal system. Adrenaline hormone is known as the Emergency hormone since all of these activities occur during stressful conditions.

Additional information:
Adrenal glands are endocrine glands that produce essential hormones that are necessary for metabolic functioning and stress response. Certain hormones are sent into the bloodstream by the adrenal gland, which prepares the body for mobilisation. It also produces sex
hormones and cortisol, both of which are essential for survival.

Note:
Physical threat, excitement, loudness, bright lights, and a high or low ambient temperature are all key physiologic causes of adrenaline release. The central nervous system processes all of these impulses. By increasing the activity of tyrosine hydroxylase and dopamine $\beta$-hydroxylase, two essential enzymes involved in catecholamine production, adrenocorticotropic hormone (ACTH) and the sympathetic nervous system drive the synthesis of adrenaline precursors.