Renin
Renin is an enzyme that is made by the kidneys. It is released into the circulatory system to raise blood pressure. This causes more blood to be sent to the kidneys.
Renin Media
The renin–angiotensin system, showing role of renin at bottom
Renin is an enzyme that is made by the kidneys. It is released into the circulatory system to raise blood pressure. This causes more blood to be sent to the kidneys.
The renin–angiotensin system, showing role of renin at bottom