Renin is produced by which organ in the body?

Renin is an enzyme that plays a crucial role in regulating blood pressure and fluid balance in the body. It is specifically produced by the juxtaglomerular cells of the kidneys, which are located in the nephrons. When blood pressure drops or there is a decrease in sodium chloride concentration, these cells secrete renin into the bloodstream.

Renin then initiates a cascade of reactions known as the renin-angiotensin-aldosterone system (RAAS). This system aids in increasing blood pressure by promoting vasoconstriction and stimulating the production of aldosterone, which increases sodium and water reabsorption in the kidneys. Therefore, renin is integral to the body’s ability to maintain blood pressure and electrolyte balance, highlighting the pivotal role of the kidneys in this physiological process.