1. Vasa recta.
- It is a peritubular capillaries that form hair pin vascular
loops that run in close association with loop of Henle.
- Function - Formation of concentrated urine.
2. Loop of Henle.
- It is part of kidney tubule.
- It forms a long loop in the medulla of the kidney from which
water and salts are reabsorbed into the blood.
- Function.
- Reabsorption of 15% of filtered water.
- Reabsorption of 25% filtered load of Na+.
- Production of dilute filtrate entering the distal tubule.
3. Acidosis.
- It is refers to an excess of acid in the blood , that causes
the pH of the blood to fall below 7.35.
4. Alkalosis
- It is refers to an excess of base in the blood that causes the
pH of the blood to rise above 7.45.
There is no Function, it is an condition.