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.

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Quizplus · Accepted Answer

This is true because in an antidiuretic state, the body is conserving water and allowing it to be reabsorbed in the loop of Henle. This creates a concentration gradient that results in a higher osmolarity of the tubular fluid at the tip of the loop of Henle compared to the glomerular filtrate.

At the Tip of the Loop of Henle, the Osmolarity