All of the following are ways ANH increases urine output except which one?
A) ANH dilates the afferent arterioles, while constricting the efferent arterioles in the kidney.
B) ANH inhibits the production of renin by the juxtaglomerular apparatus.
C) ANH inhibits sodium filtration in the nephron directly.
D) ANH inhibits the secretion of ADH from the posterior pituitary.

Question

Quizplus · Accepted Answer

ANH results in increased urine production in four ways: ANH dilates the afferent arterioles, while constricting the efferent arterioles in the kidney. This causes increased pressure in the glomeruli; so the glomerular filtration rate is increased. More water, glucose, amino acids, and mineral salts move across the filtration membrane into the glomerular capsule. ANH inhibits the production of renin by the juxtaglomerular apparatus. Inhibiting renin means that angiotensin I, angiotensin II, and aldosterone will not be produced. This inhibits water and sodium reabsorption. ANH inhibits the secretion of ADH from the posterior pituitary. This also limits water conservation. ANH inhibits sodium reabsorption in the nephron directly. Since water follows sodium, if less sodium is reabsorbed, it follows that less water is reabsorbed.

All of the Following Are Ways ANH Increases Urine Output