The urinary system secretes _______, which is important in regulating blood pressure.
A) renin
B) erythropoietin
C) urea
D) ammonia

Question

Quizplus · Accepted Answer

Renin is an enzyme secreted by the kidneys in response to low blood pressure or low blood volume. It helps to regulate blood pressure by activating the renin-angiotensin-aldosterone system, which causes vasoconstriction (narrowing of blood vessels) and increased retention of salt and water in the body.

The Urinary System Secretes _______, Which Is Important in Regulating