Renin plays a role in blood pressure regulation by

Question

Quizplus · Accepted Answer

Specialized cells in the afferent and efferent arterioles and the distal tubule are collectively known as the juxtaglomerular apparatus.These cells are responsible for the production of a hormone called renin,which plays a role in blood pressure regulation.Renin is released whenever blood flow through the afferent and efferent arterioles decreases.A decrease in the sodium ion concentration of the blood flowing past the specialized cells (e.g.,in hypovolemia)also stimulates the release of renin.Renin activates the renin-angiotensin-aldosterone cascade,which ultimately results in angiotensin II production.Angiotensin II causes vasoconstriction and release of aldosterone from the adrenal glands,thereby raising blood pressure and flow and increasing sodium and water reabsorption in the distal tubule and collecting ducts.

Renin Plays a Role in Blood Pressure Regulation by