Question

In which of the following organs the concentration of urine depends?
A. Bowman’s capsule
B. Length of Henle’s loop
C. Proximal convoluted tubules
D. Network of capillaries arising from glomerulus.

Answer 1

Hint: It is also known as nephron loop. It is a u-shaped loop that conducts urine from the kidney to each nephron of the kidney. It is seen in the kidneys of reptiles, birds and mammals. The main function is it excrete concentrated urine by reabsorbing the water. It creates a concentration gradient in the medulla of the kidney.

Complete answer:
Loop of henle is discovered by the german scientist Jakob henle. It is a U-shaped loop that conducts urine from kidney to each nephron in every bride, mammals and reptiles.
The loop of henle is divided into four parts. The thin descending limb of the loop of henle, the thick ascending limb of the loop of henle, the ascending loop of henle and the cortical thick descending limb.
In the ascending limb of the loop of henle the reabsorption of water and sodium and chloride is literate.
It conserves water from the organism and creates concentration in urine. Bowman’s capsule is also called a glomerulus capsule, it filtrates blood to form urine.
The proximal convoluted tubules help in reabsorbing the water, sodium potassium and chloride.
The glomerulus is the filtering unit of blood. These are present in the network of capillary.
Hence, the concentration of urine depends upon the loop of henle. The concentration gradient occurs in the medulla of the kidney.

Hence, the correct answer is option (B).

Note: It is a U–shaped loop that conducts urine to the nephron of the kidney. It consists of four parts. Thin descending loop of henle, the thick ascending loop of henle, the ascending loop of henle and cortical loop. Mainly the ascending limb of the loop helps in the absorption of the water and filtrate the sodium and potassium.