The hyperosmolarity of the renal medulla is due to increased content of_____________?
Correct answer: A. Na+
- A. Na+
- B. K+
- C. Glucose
- D. NH4+
Explanation
Medullary hyperosmolarity is produced mainly by accumulation of NaCl in the outer medulla and NaCl plus urea in the inner medulla. Among the listed choices, increased Na+ content is the best answer.
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