9 Questions
Which hormone is the major mineralocorticoid secreted in humans?
Aldosterone
Where does aldosterone primarily cause reabsorption of sodium and secretion of potassium and hydrogen ions?
Distal renal tubule
What is the major regulator of aldosterone secretion?
Renin-angiotensin system
Which part of the adrenal cortex secretes aldosterone?
Zona glomerulosa
Which glands does aldosterone affect, in addition to the distal renal tubule?
Salivary glands and sweat glands
What is the precursor of angiotensin I in the renin-angiotensin system?
Angiotensinogen
Which cells are sensitive to decreased renal perfusion pressure or volume and secrete renin?
Juxtaglomerular cells
Which enzyme primarily converts angiotensin I to angiotensin II?
Converting enzyme
What is the main action of aldosterone in the body?
Reabsorption of sodium
Test your knowledge on mineralocorticoids and their role in electrolyte and volume homeostasis. Learn about aldosterone, the primary mineralocorticoid secreted by the adrenal cortex, and how it affects sodium reabsorption and potassium and hydrogen ion secretion. Explore its actions in different organs and its regulation.
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