32.Mineralocorticoids and Aldosterone
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Questions and Answers

Which hormone is the major mineralocorticoid secreted in humans?

  • Cortisol
  • Testosterone
  • Aldosterone (correct)
  • Estrogen

Where does aldosterone primarily cause reabsorption of sodium and secretion of potassium and hydrogen ions?

  • Proximal renal tubule
  • Glomerulus
  • Collecting duct
  • Distal renal tubule (correct)

What is the major regulator of aldosterone secretion?

  • Renin-angiotensin system (correct)
  • Thyroid hormone
  • Insulin
  • Adrenaline

Which part of the adrenal cortex secretes aldosterone?

<p>Zona glomerulosa (C)</p> Signup and view all the answers

Which glands does aldosterone affect, in addition to the distal renal tubule?

<p>Salivary glands and sweat glands (D)</p> Signup and view all the answers

What is the precursor of angiotensin I in the renin-angiotensin system?

<p>Angiotensinogen (C)</p> Signup and view all the answers

Which cells are sensitive to decreased renal perfusion pressure or volume and secrete renin?

<p>Juxtaglomerular cells (A)</p> Signup and view all the answers

Which enzyme primarily converts angiotensin I to angiotensin II?

<p>Converting enzyme (A)</p> Signup and view all the answers

What is the main action of aldosterone in the body?

<p>Reabsorption of sodium (D)</p> Signup and view all the answers

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