Which of the following would increase the rate of glomerular filtration?Multiple ChoiceConstriction of the afferent arterioleDecreased blood pressureDilation of the efferent arterioleIncreased blood pressure
Question
Which of the following would increase the rate of glomerular filtration?Multiple ChoiceConstriction of the afferent arterioleDecreased blood pressureDilation of the efferent arterioleIncreased blood pressure
Solution
The rate of glomerular filtration would increase with increased blood pressure.
Here's why:
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Constriction of the afferent arteriole: This would actually decrease the rate of glomerular filtration because it reduces the amount of blood flowing into the glomerulus.
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Decreased blood pressure: This would also decrease the rate of glomerular filtration. Lower blood pressure means less force to push blood through the glomerulus, resulting in less filtration.
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Dilation of the efferent arteriole: This would decrease the rate of glomerular filtration. If the efferent arteriole (the blood vessel leading away from the glomerulus) dilates, blood will flow out more easily, reducing the pressure in the glomerulus and thus the filtration rate.
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Increased blood pressure: This would increase the rate of glomerular filtration. Higher blood pressure means more force to push blood through the glomerulus, resulting in more filtration.
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