Question

what is counter current mechanism

Answer 1

A countercurrent mechanism systemis a mechanism that expends energy to create a concentration gradient....

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Answer 2

The counter-current mechanism

Explanation:

• The counter-current mechanism working inside the kidney is the main adaptation to conserve water. There are two reversible mechanisms inside the kidney. They are the Henle loop and the vasa recta.

• The Henle loop is the U-shaped part of the nephron. Blood flows in opposite directions in both the parts of the tube and this produces opposite currents.

• The vasa recta is an efferent arteriole that forms a capillary network around the tubules inside the renal medulla.

• It runs parallel to the loop of Henle and is U-shaped. Blood flows in opposite directions in the two organs of the vasa recta.

• As a result, the blood entering the renal medulla in the descending limb comes into close contact with the outgoing blood in the ascending limb.