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Questions and Answers
What effect does ADH have on urea permeability in the cortical and outer medullary collecting ducts?
What effect does ADH have on urea permeability in the cortical and outer medullary collecting ducts?
- ADH decreases urea permeability in the cortical and outer medullary collecting ducts.
- ADH has no effect on urea permeability in the cortical and outer medullary collecting ducts. (correct)
- ADH decreases water permeability in the cortical and outer medullary collecting ducts.
- ADH increases urea permeability in the cortical and outer medullary collecting ducts.
What is the result of ADH's differential effect on water and urea permeability in the cortical and outer medullary collecting ducts?
What is the result of ADH's differential effect on water and urea permeability in the cortical and outer medullary collecting ducts?
- Neither water nor urea are reabsorbed from the cortical and outer medullary collecting ducts.
- Water is reabsorbed, but urea remains behind in the tubular fluid in the cortical and outer medullary collecting ducts. (correct)
- Urea is reabsorbed, but water remains behind in the tubular fluid in the cortical and outer medullary collecting ducts.
- Both water and urea are reabsorbed from the cortical and outer medullary collecting ducts.
Where does ADH increase water permeability and the transporter for facilitated diffusion of urea?
Where does ADH increase water permeability and the transporter for facilitated diffusion of urea?
- Inner medullary collecting ducts (correct)
- Cortical and outer medullary collecting ducts
- Bowman's capsule
- Glomerulus
What is the second process that mediates the cortico-papillary osmotic gradient?
What is the second process that mediates the cortico-papillary osmotic gradient?
What does ADH do to urea permeability in the inner medullary collecting ducts?
What does ADH do to urea permeability in the inner medullary collecting ducts?
Urea recycling occurs in the cortical and outer medullary collecting ducts
Urea recycling occurs in the cortical and outer medullary collecting ducts
ADH increases water permeability in the inner medullary collecting ducts
ADH increases water permeability in the inner medullary collecting ducts
ADH does not increase urea permeability in the cortical and outer medullary collecting ducts
ADH does not increase urea permeability in the cortical and outer medullary collecting ducts
The urea concentration of tubular fluid increases due to the effect of ADH on water and urea permeability in the cortical and outer medullary collecting ducts
The urea concentration of tubular fluid increases due to the effect of ADH on water and urea permeability in the cortical and outer medullary collecting ducts
ADH increases the transporter for facilitated diffusion of urea, UT1, in the inner medullary collecting ducts
ADH increases the transporter for facilitated diffusion of urea, UT1, in the inner medullary collecting ducts
ADH increases water permeability in the inner medullary collecting ducts.
ADH increases water permeability in the inner medullary collecting ducts.
The differential effect of ADH on water and urea permeability in the cortical and outer medullary collecting ducts causes the urea concentration of tubular fluid to decrease.
The differential effect of ADH on water and urea permeability in the cortical and outer medullary collecting ducts causes the urea concentration of tubular fluid to decrease.
Urea recycling occurs in the inner medullary collecting ducts.
Urea recycling occurs in the inner medullary collecting ducts.
ADH does not increase urea permeability in the cortical and outer medullary collecting ducts.
ADH does not increase urea permeability in the cortical and outer medullary collecting ducts.
ADH increases the transporter for facilitated diffusion of urea, UT1, in the cortical and outer medullary collecting ducts.
ADH increases the transporter for facilitated diffusion of urea, UT1, in the cortical and outer medullary collecting ducts.
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Study Notes
ADH's Effect on Urea Permeability and Water Permeability
- ADH does not increase urea permeability in the cortical and outer medullary collecting ducts.
- In the cortical and outer medullary collecting ducts, ADH's differential effect on water and urea permeability causes the urea concentration of tubular fluid to increase.
- Urea recycling occurs in the cortical and outer medullary collecting ducts.
ADH's Effect on Inner Medullary Collecting Ducts
- ADH increases water permeability in the inner medullary collecting ducts.
- ADH increases the transporter for facilitated diffusion of urea, UT1, in the inner medullary collecting ducts.
- Urea recycling occurs in the inner medullary collecting ducts.
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