Explain Hormonal control in BP?
Hormonal action takes time and is normally long in duration. Renin is secreted from the kidneys converted to Angiotensin in the liver when this is converted to Angiotensin2 this has a vasoconstriction effect on the lungs. Therefore reducing O2 delivery in the blood that goes to the heart making it beat faster. Aldosterone is released which increases the retention of Sodium and water increasing blood volume and CO. Catecholamines which cause vasoconstriction.