Question

Name two hormones that are Catecholamines.

Answer 1

Catecholamine are varied amines present. Catecholamines are characterized by a catechol group (a benzene ring with two hydroxyl groups) to which is attached to an amine (nitrogen-containing) group.

Complete answer:
On the highest point of the kidneys, adrenal glands are located which produce hormones like catecholamines. The physical body has two adrenal glands that release chemicals called hormones into the bloodstream. Dopamine, norepinephrine, and epinephrine are physiologically active molecules mentioned as catecholamines. It acts both as neurotransmitters and hormones vital to the maintenance of homeostasis through the autonomic nervous system. the subsequent release into the blood, these hormones bind adrenergic receptors on target cells, where they induce essentially equivalent effects as direct sympathetic nervous stimulation. All adrenocortical hormones are steroid compounds made up of cholesterol.
Dopamine: This neurotransmitter sends signals throughout the nervous system. It helps regulate the subsequent: movement, emotions, memory, brain's reward mechanism.
Adrenaline, or epinephrine: This neurotransmitter is responsible for the fight-or-flight response. When a private experiences stress, the body releases adrenaline to allow increased blood flow to the muscles, heart, and lungs.
Noradrenaline, or norepinephrine: This neurotransmitter helps the body answer stress. Noradrenaline release increases an individual's pulse and vital signs. it is also involved in mood regulation and thus the power to concentrate.

Additional Information: The "fight or flight" response of the sympathetic nervous system could also be an immediate result of the multisystem action of catecholamines. Secretion from the medulla proceeding the activation of the sympathetic nervous system functions to manage vital signs by contracting the graceful muscle within the vasculature (via alpha-1 receptors).
Function:
Increased metabolic rate: oxygen consumption and heat production increase throughout the body in response to epinephrine. Medullary hormones also promote the breakdown of glycogen in skeletal muscle to provide glucose for energy production.
Dilation of the pupils: particularly important in situations where an individual is surrounded by velociraptors under conditions of low ambient light.

Note: Catecholamines play a key role in nutrient metabolism and thus the generation of body heat (thermogenesis). They stimulate not only oxygen consumption but also the consumption of fuels, like glucose and free fatty acids, thereby generating heat. They stimulate glycogenolysis and thus the breakdown of triglycerides, the stored kind of fat, to free fatty acids (lipolysis). Common stimuli for the secretion of adrenomedullary hormones include exercise, hypoglycemia, hemorrhage, and emotional distress.