The fluid entering the distal convoluted tubule is hypoosmotic with respect to plasma.
Indicate whether the statement is true or false.
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Question 2) At the tip of the loop of Henle, the osmolarity of the tubular fluid is more than four times greater than that of the glomerular filtrate when a person is in an antidiuretic state.
Indicate whether the statement is true or false.
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Question 3) The main force responsible for water reabsorption from the collecting ducts is the low hydrostatic pressure in the surrounding interstitial space.
Indicate whether the statement is true or false.
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Question 4) The total solute concentration in the extracellular fluid is mainly dependent upon the concentration of Na+ in the extracellular fluid.
Indicate whether the statement is true or false.
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Question 5) Water absorption from the proximal tubule is mainly driven by the active reabsorption of Na+.
Indicate whether the statement is true or false.
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Question 6) A consequence of lack of vasopressin is excretion of sugar in the urine, which occurs in the condition diabetes mellitus.
Indicate whether the statement is true or false.
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Question 7) The countercurrent mechanism of the kidney enables the formation of hypertonic urine.
Indicate whether the statement is true or false.
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Question 8) A person lacking vasopressin would have to drink 180 L of water per day to make up for the water lost in the urine.
Indicate whether the statement is true or false.
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Question 9) Most of the body's water is located inside cells, whereas most of the body's Na+ is in the interstitial fluid and plasma.
Indicate whether the statement is true or false.
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Question 10) Total-body balance of water and Na+ is largely maintained by regulating urinary loss of these substances.
Indicate whether the statement is true or false.
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