Which of the following hormones is produced by the juxtaglomerular cells of the kidney and plays a key role in regulating blood pressure?

A Aldosterone
B Renin ✓
C Angiotensin II
D Erythropoietin

Explanation

Renin is an enzyme produced by the juxtaglomerular cells of the kidney that initiates the renin-angiotensin-aldosterone system, leading to vasoconstriction and increased blood pressure.

Source

Guyton and Hall Textbook of Medical Physiology
Hormones and Endocrine Markers Nephrology Renal Hormones Easy MEDICAL Confidence: high