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How does the juxtaglomerular apparatus respond when systemic blood pressure is too high

saraalalwane
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2022-10-11
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How does the juxtaglomerular apparatus respond when systemic blood pressure is too high?

  1. the juxtaglomerular cells send a message to the afferent arteriole to dilate.
  2. The macula densa sends a message to the efferent arteriole to constrict.
  3. The macula densa sends a message to the afferent arteriole to constrict.
  4. The granular cells release renin which causes systemic arterioles to constrict
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saraalalwane
2022-10-11
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C: Constricting the afferent arteriole will decrease the volume of blood entering the glomerulus and hence the blood pressure in it. All other choices will result in an increase in pressure within the glomerulus

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