PATHOLOGY MCQ
URINARY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Transfer of materials into tubular fluid
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Return of water and many solutes to the blood
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Either A or B
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None of the above
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Detailed explanation-1: -Tubular reabsorption is the process that moves solutes and water out of the filtrate and back into your bloodstream. This process is known as reabsorption, because this is the second time they have been absorbed; the first time being when they were absorbed into the bloodstream from the digestive tract after a meal.
Detailed explanation-2: -Most of the water and other substances that filter through your glomeruli are returned to your blood by the tubules. Only 1 to 2 quarts become urine. Children produce less urine than adults, and the amount produced depends on their age.
Detailed explanation-3: -Note the use of the term “reabsorbed.” All of these substances were “absorbed” in the digestive tract-99 percent of the water and most of the solutes filtered by the nephron must be reabsorbed. Water and substances that are reabsorbed are returned to the circulation by the peritubular and vasa recta capillaries.