Which of the Following Statements Are True of the Kidneys

Multiple Choice

Which of the following statements are true of the kidneys and renin (Select all that apply) ?

A) Renin is secreted by the juxtaglomerular cells of the kidney when blood pressure rises too high.
B) One function of angiotensin II is to increase vasoconstriction.
C) The secretion of aldosterone is increased by angiotensinogen.
D) The renin-angiotensin mechanism is a negative feedback mechanism.