Adrenergic system
Adrenergic System
The Adrenergic System (pronunciation: ad-ren-er-jik sis-tem) is a part of the Autonomic Nervous System that uses Adrenaline (also known as epinephrine) and Noradrenaline (also known as norepinephrine) as its primary neurotransmitters.
Etymology
The term "Adrenergic" is derived from the Latin adrenalis, meaning 'pertaining to the adrenal glands', and the Greek ergon, meaning 'work'. This refers to the system's primary function of producing and releasing adrenaline and noradrenaline from the adrenal glands in response to stress.
Function
The Adrenergic System plays a crucial role in the body's Fight or Flight Response. When the body perceives a threat, the Adrenergic System is activated, leading to an increase in heart rate, blood pressure, and blood glucose levels. This prepares the body for immediate physical action.
Related Terms
- Adrenergic Receptors: These are the receptors in the body that respond to adrenaline and noradrenaline. They are divided into two main types: alpha and beta receptors.
- Adrenergic Neurons: These are the nerve cells that release adrenaline and noradrenaline in the Adrenergic System.
- Adrenergic Drugs: These are medications that either stimulate or inhibit the Adrenergic System. They are used to treat a variety of conditions, including high blood pressure, asthma, and certain heart conditions.
See Also
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