ZONA GLOMERULOSA Meaning and
Definition
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Zona glomerulosa is a term used in anatomy and endocrinology to refer to a distinct layer of cells in the adrenal cortex, which is found in the outermost region of the adrenal glands. The adrenal glands, also known as suprarenal glands, are small triangular-shaped organs located on top of the kidneys.
The zona glomerulosa is responsible for producing and secreting a hormone called aldosterone. Aldosterone is a mineralocorticoid hormone that plays a vital role in regulating electrolyte balance, especially by promoting the reabsorption of sodium ions and excretion of potassium ions in the kidneys. This process directly affects blood pressure and fluid balance within the body.
The cells in the zona glomerulosa are unique in their structure and function compared to the other layers of the adrenal cortex. These cells have a characteristic rounded or glomerular appearance under a microscope, hence the name "glomerulosa." They are stimulated by the renin-angiotensin-aldosterone system (RAAS), which is responsible for maintaining blood pressure and fluid balance.
Disorders or dysfunctions in the zona glomerulosa can lead to imbalances in aldosterone production. Hyperaldosteronism, for example, is a condition characterized by excessive aldosterone secretion, causing hypertension and imbalances in electrolyte levels. Conversely, hypoaldosteronism, which is a deficiency in aldosterone production, can result in low blood pressure, electrolyte abnormalities, and impaired kidney function.
In summary, the zona glomerulosa is a specific layer within the adrenal cortex that produces and releases aldosterone, a hormone essential for regulating electrolyte balance and blood pressure.
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The outer layer of the cortex of the suprarenal gland just beneath the capsule.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for ZONA GLOMERULOSA
- xona glomerulosa
- sona glomerulosa
- aona glomerulosa
- zina glomerulosa
- zkna glomerulosa
- zlna glomerulosa
- zpna glomerulosa
- z0na glomerulosa
- z9na glomerulosa
- zoba glomerulosa
- zoma glomerulosa
- zoja glomerulosa
- zoha glomerulosa
- zonz glomerulosa
- zons glomerulosa
- zonw glomerulosa
- zonq glomerulosa
- zona flomerulosa
- zona vlomerulosa
- zona blomerulosa
Etymology of ZONA GLOMERULOSA
The word "zona glomerulosa" has its origin in Latin. "Zona" means "zone" in Latin, and "glomerulosa" is derived from the Latin word "glomerulus", which refers to a small ball or a little heap.
The term "zona glomerulosa" was coined to describe a specific layer of cells in the adrenal cortex, which forms small clusters or "glomeruli" within that zone. This layer is responsible for the production of mineralocorticoid hormones such as aldosterone.
