AT receptors are mainly found in the heart, adrenal glands, brain, liver and kidneys. Their main role is to regulate blood pressure as well as fluid and electrolyte balance. <br />
AT receptors are highly expressed in the developing fetus but they decline rapidly after birth. In the adult, AT receptors are present only at low levels and are mostly found in the heart, adrenal glands, uterus, ovaries, kidneys and brain.