I: | the two limbs of Henle’s loop. |
II: | the two limbs of vasa recta. |
III: | the Henle’s loop and vasa recta. |
Statement I: | NaCl is transported by the ascending limb of Henle’s loop which is exchanged with the descending limb of vasa recta. |
Statement II: | NaCl is returned to the interstitium by the ascending portion of vasa recta. |
1. | It converts angiotensinogen in blood to angiotensin I. |
2. | It is a powerful vasodilator. |
3. | It causes reabsorption of Na+ and water from the distal parts of the tubule. |
4. | It activate the JG cells to release rennin. |