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(Created page with " = Adrenal Cortex = == Where is adrenal cortex situated? == adrenal cortex forms the outer three-quarters of the gland == What are the Hormones secreted by Adrenal Cortex ? == The adrenal cortex secretes – three major types of steroid hormones: * Aldosterone – Called ''Mineralocorticoid'' * Glucocorticoids * Sex Hormones. == What are the three layers of adrenal cortex? == Histologically, the adrenal cortex is divided into three layers, or zones # Outer ''zona g...") |
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== Where is adrenal cortex situated? == | == Where is adrenal cortex situated? == | ||
adrenal cortex forms the outer three-quarters of the gland | adrenal cortex forms the outer three-quarters of the gland | ||
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== What are the major effects of Aldosterone on Kidney? == | == What are the major effects of Aldosterone on Kidney? == | ||
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=== Aldosterone Effects === | |||
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=== Action at Distal Convoluted Tubule And Collecting Duct Of The Kidney === | |||
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=== Cells Involved === | |||
|- | |||
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|Increased Reabsorption Of Sodium | |||
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|- | |||
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|Increased Excretion Of Potassium | |||
|By Principal Cells | |||
|- | |||
| | |||
|Increased Excretion Of Hydrogen Ions | |||
|By Intercalated Cells Of The Collecting Duct | |||
|} | |||
[[Category:Endocrinology]] | |||
[[Category:Adrenal Gland]] | |||
Latest revision as of 20:48, 18 September 2022
Where is adrenal cortex situated?
adrenal cortex forms the outer three-quarters of the gland
What are the Hormones secreted by Adrenal Cortex ?
The adrenal cortex secretes – three major types of steroid hormones:
- Aldosterone – Called Mineralocorticoid
- Glucocorticoids
- Sex Hormones.
What are the three layers of adrenal cortex?
Histologically, the adrenal cortex is divided into three layers, or zones
- Outer zona glomerulosa – secretes only aldosterone.
- Middle zona fasciculata – secretes mostly glucocorticoids
- Inner zona reticularis – secretes mostly androgens, the sex hormones dominant in men.
Adrenal Cortex Zone |
Zone |
Hormones |
Hormones | |
| 1 | Zona Glomerulosa | Outer | Aldosterone | |
| 2 | Zona Fasciculata | Middle | Glucocorticoids | 11-Deoxycorticosterone
Corticosterone Cortisol |
| 3 | Zona Reticularis | Inner | Androgens | Dehydroepiandrosterone (DHEA)
DHEA Sulfate (DHEA-S) Androstenedione |
Where is adrenal medulla situated?
- Adrenal Medulla Occupies – One Fourth Of Inner Mass Of Adrenal Gland
- Composed Of Modified Sympathetic Ganglia
- Secrete Catecholamines
Which is the primary precursor of natural estrogens ?
Dehydroepiandrosterone (DHEA) is the primary precursor of natural estrogens.
DHEA is also called dehydroisoandrosterone or dehydroandrosterone.
What are the major effects of Aldosterone on Kidney?
Aldosterone Effects |
Action at Distal Convoluted Tubule And Collecting Duct Of The Kidney |
Cells Involved |
| Increased Reabsorption Of Sodium | ||
| Increased Excretion Of Potassium | By Principal Cells | |
| Increased Excretion Of Hydrogen Ions | By Intercalated Cells Of The Collecting Duct |