The loop of the nephron (loop of Henle)
A) is necessary for glucose reabsorption.
B) creates a low osmotic pressure in the medulla.
C) creates a high osmotic pressure in the medulla.
D) creates a low osmotic pressure in the cortex.
E) creates a high osmotic pressure in the cortex.

Question

Quizplus · Accepted Answer

The loop of Henle plays a crucial role in creating a concentration gradient in the medulla of the kidney. This is achieved by actively transporting ions out of the thick ascending limb, creating a high osmotic pressure in the surrounding interstitial fluid. As a result, water is reabsorbed from the descending limb into the interstitial fluid, following the concentration gradient. This helps to concentrate the urine and conserve water. The loop of Henle does not play a role in glucose reabsorption, and it does not create a low osmotic pressure in either the cortex or the medulla.

The Loop of the Nephron (Loop of Henle)