CHROMAFFIN SYSTEM Meaning and
Definition
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The chromaffin system is a component of the autonomic nervous system that is primarily responsible for the production and release of hormones known as catecholamines, particularly adrenaline (epinephrine) and noradrenaline (norepinephrine). It is located in the adrenal medulla, which is an important gland situated on top of the kidneys.
This system consists of clusters of specialized cells called chromaffin cells, which are derived from neural crest cells during embryonic development. These cells contain secretory granules that store the catecholamine hormones. Upon stimulation by the sympathetic nervous system, the chromaffin cells release these hormones directly into the bloodstream.
The chromaffin system is closely connected to the fight-or-flight response, which is a physiological reaction to stress. When an individual encounters a perceived threat or stressor, the chromaffin cells secrete adrenaline and noradrenaline, causing an increase in heart rate, blood pressure, and blood glucose levels. These hormones also help to dilate the airways, redirect blood flow to essential organs, and increase alertness and focus, preparing the body for immediate action.
Disorders or dysfunction of the chromaffin system can lead to various health problems. For example, an excessive release of catecholamines can result in hypertension (high blood pressure), while an insufficient release can cause hypotension (low blood pressure). Proper regulation of the chromaffin system is essential for the body to effectively respond to stress and maintain homeostasis.
Common Misspellings for CHROMAFFIN SYSTEM
- xhromaffin system
- vhromaffin system
- fhromaffin system
- dhromaffin system
- cgromaffin system
- cbromaffin system
- cnromaffin system
- cjromaffin system
- curomaffin system
- cyromaffin system
- cheomaffin system
- chdomaffin system
- chfomaffin system
- chtomaffin system
- ch5omaffin system
- ch4omaffin system
- chrimaffin system
- chrkmaffin system
- chrlmaffin system
- chrpmaffin system
Etymology of CHROMAFFIN SYSTEM
The word "chromaffin" originates from the Latin term "chroma", which means color, and "affinis", meaning affinity or relatedness. The Chromaffin system refers to a group of cells that have an affinity to absorb certain dyes and stain brownish or yellowish. These cells are specifically found in the adrenal medulla, paraganglia, and other parts of the body.
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