RAAS — Flashcards

Flashcard 11: What is the result of the dexamethasone suppression test in a normal patient? _____

Answer: Low-dose dexamethasone inhibits ACTH secretion and consequently cortisol secretion

Flashcard 12: Secondary hyperaldosteronism is due to activation of _____ system

Answer: renin-angiotensin

Flashcard 13: The primary regulation of aldosterone secretion occurs through changes in _____ (via the renin-angiotensin II-aldosterone system) and changes in serum _____ levels

Answer: ECF volume

Flashcard 14: Which cells of the kidney detect changes in blood pressure? _____

Answer: Juxtaglomerular cells

Extra: Other:

Flashcard 15: In the ovaries, cholesterol desmolase activity is stimulated by the hormone _____

Answer: LH

Flashcard 16: The renin-angiotensin II-aldosterone system is activated in response to a(n) _____ in mean arterial pressure

Answer: decrease

Flashcard 17: T3/T4 hormones bind to _____  receptors

Answer: intracellular

Flashcard 18: What is the effect of testosterone on LH secretion? _____

Answer: Decreased

Flashcard 19: Aldosterone increases _____ and H2O reabsorption at the distal tubules and collecting duct

Answer: Na+

Flashcard 20: In response to increased Na+ intake (and ECF volume), there is _____ renin-angiotensin-aldosterone activity

Answer: decreased