So this will basically cause special types of cells, known as juxtaglomeroth cells inside the kidneys to release our enzyme known as Rena. And at the same time, liver cells produce and release a zymogen known as angiotensinogen into the bloodstream. And when these two mix, the Renan will basically cleave our angiotensinogen and form angiotensin one. Now, once we form angiotensin one, it will then travel into lung cells and also into kidney cells, and it will be activated by using the angiotensin converting enzyme into angiotensin II. And then angiotensin II basically goes on to activate the ADH, the vasoppressin released by the posterior pituitary, which causes our kidneys to become more permeable to water and reabsorb more water into our blood vessels. Now, it also causes the release of aldosterone, which basically causes our kidneys also to reabsorb more water by creating a net movement of ions back into the blood.