Question 8 What is the main function of the collecting ducts? Reabsorption of large proteins and ions. Filtration of large proteins and red blood cells. Reabsorption of water under hormoral control. Secretion of ions. Secretion of water through aquaporins. Release of anti-diuretic hormone (ADH). 1 pts
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Step 1: The collecting ducts are the final part of the nephron, the functional unit of the kidney. Show more…
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Adi S.
What is the function of antidiuretic hormone (ADH)? ADH controls the rate that filtrate moves from the glomerulus into Bowman's capsule. High levels of ADH prevent the insertion of aquaporins in the collecting duct membrane Low levels or the absence of ADH in the blood stimulates the brain's thirst response. With increased concentrations, ADH causes nephrons to produce dilute, copious urine. With high concentrations, ADH causes more water to be reabsorbed into the blood.
Shaiju T.
Antidiuretic hormone has its main effects by A. Altering sodium reabsorption in the distal tubule and collecting duct B. Upregulating reabsorption in the loop of Henle C. Increasing permeability of the collecting ducts to water D. Decreasing glomerular filtration QUESTION 6 Which of the following best describes the pattern of permeability in the descending region of the loop of Henle? A. Impermeable to water, permeable to solutes B. Permeable to water, impermeable to solutes C. Impermeable to water and solutes D. Permeable to water and solutes
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