MEDICAL PHYSIOLOGY

Detailed explanation-1: -Angiotensinogen is produced primarily by the liver, but angiotensinogen mRNA has also been detected in adipocytes, the kidney, regions of the brain, the adrenal gland, the heart and blood vessels.

Detailed explanation-2: -While the liver is the primary source of angiotensinogen, it is also produced in other tissues including the kidney.

Detailed explanation-3: -Angiotensinogen is a plasma protein produced and released into the circulation by the liver cells. It is also known as renin substrate. It is the component of the renin-angiotensin system, a hormone system which regulates blood pressure and fluid balance. So, the correct answer is ‘Liver cells’.