Angiotensin II
The substance formed by ACE from angiotensin I. Angiotensin II is the most potent vasoconstrictiveeffective and thus blood pressure-increasing substance in the body. A. also stimulates the release of aldosterone from the adrenal cortex and increases the activity of the sympathetic. A. is the most important substance for medium-term blood pressure regulation. The main task of angiotensin II is to increase blood pressure on three levels:
1. constriction of the arterioles above the sympathetic nervous system
2. reduced excretion of water in the kidneys by hormones (ADH and aldosterone)
Third, thirst.
These mechanisms are designed to increase blood pressure.