PATHOLOGY MCQ
URINARY SYSTEM
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is a function of the kidney?
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Control red blood cell production
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Control white blood cell production
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Activate Vitamin A
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Maintain reproductive hormone levels
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Explanation:
Detailed explanation-1: -By controlling red cell mass via erythropoietin and plasma volume through excretion of salt and water, the kidney is able to generate the hematocrit.
Detailed explanation-2: -remove waste products from the body. remove drugs from the body. balance the body’s fluids. release hormones that regulate blood pressure.
Detailed explanation-3: -This process, termed erythropoiesis, is exquisitely regulated by an oxygen-sensing mechanism that has evolved to maintain RBC numbers within a narrow physiological range 1– 3. Central to this mechanism is erythropoietin (EPO), a cytokine secreted by the kidney in response to low blood oxygen tension.
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