Renal function

Kidney is located around vertebra L2.
Nephron: Glomerulus, proximal convulated tubule, Loop of Henle, distal convulated tubule, collecting duct.
Renal function
1)Conversion of calcidiol to calcitriol (vitamin D3). Raises blood concentration of calcium by promoting intestinal absorption and slightly inhibiting loss in urine. More calcium available for bone deposition.
2)Secretes renin, converting angiotensinogen to angiotensin 1. Angiotensin-converting enzyme on the lining of blood capillaries converts it to angiotensin 2. This hormone causes vasoconstriction.
3)Secretes 85% of the body’s erythropoietin. Promotes RBC production and increases oxygen carrying capacity of blood.
4)Filter blood plasma, separates and eliminates waste from the blood.
5)Regulate blood volume and pressure
6)Regulate osmolarity of body fluids
7)In extreme starvation, they carry out gluconeogenesis by deaminating amino acids and excreting the amino group as ammonia.

Excretion will be explained during PCL =) need to do it with pics.