Kidney filters the blood thus network of blood vessels is its important component
- Abdominal aorta branch into renal artery. (oxygenated blood)
- Kidney receives arterial blood through renal artery.
- In kidney, renal artery divides into interlobar arteries. They enter between pyramids through renal columns.
- Interlobar gets branch into Arcuate arteries and this further divides into interlobular arteries in cortex. This now divided into many afferent arterioles.
- Afferent artioles enter into bowmen’s capsule to form glomerus (blood capillaries which produce blood filtrate).
- Glomerulus unites and form efferent arteriole. Remaining blood is carried by it. This carries blood and delivers it to the Peritubular capillaries.
- Peritubular capillaries open into Interlobular veins, Arcuate veins and Interlobar veins. These all combine to form Renal vein and branch off the inferior venacava and drains deoxygenated blood from kidney.