Catecholamines
Catecholamines
Catecholamines (pronounced: kat-i-kol-uh-meen) are a group of hormones produced in the body, particularly in the adrenal glands. They play a crucial role in the body's response to stress and include dopamine, norepinephrine, and epinephrine (also known as adrenaline).
Etymology
The term "catecholamines" is derived from the chemical structure of these hormones, which includes a catechol group (a benzene ring with two hydroxyl groups) and an amine (a nitrogen-containing group). The term was first used in the mid-20th century.
Function
Catecholamines are part of the body's fight or flight response. They are released into the bloodstream in response to physical or emotional stress. The primary functions of catecholamines include increasing heart rate, blood pressure, and blood glucose levels, and dilating the bronchioles in the lungs to improve oxygen flow.
Related Terms
- Adrenal Gland: The gland that produces catecholamines.
- Dopamine: A type of catecholamine that acts as a neurotransmitter in the brain.
- Norepinephrine: A type of catecholamine that is primarily involved in the body's response to stress.
- Epinephrine: Also known as adrenaline, a type of catecholamine that increases heart rate, blood pressure, and blood glucose levels.
See Also
External links
- Medical encyclopedia article on Catecholamines
- Wikipedia's article - Catecholamines
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