Q:

In the nephron, if the afferent arteriole dilates and the efferent arteriole constricts, which of the following would be true

saraalalwane
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2022-10-11
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 In the nephron, if the afferent arteriole dilates and the efferent arteriole constricts, which of the following would be true?

  1. The glomerular fi ltration rate would decrease.
  2. The pressure in the glomerulus will decrease
  3. The absorption of sodium and chloride ions form the fi ltrate would increase.
  4. Before these events, the granular cells would have released renin.
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saraalalwane
2022-10-11
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D: The granular cells of the afferent arteriole respond to low blood pressure by releasing renin. As a result, angiotensin II would form which causes systemic vasoconstriction, which increases blood pressure, which dilates the afferent arteriole and increases glomerular fi ltration rate.

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