Final answer:
Renin stimulates the production of angiotensin I, which is converted into angiotensin II, leading to the release of aldosterone from the adrenal cortex.
Step-by-step explanation:
The hormone released as a result of Renin's action is aldosterone.
Renin is secreted by the juxtaglomerular cells of the kidneys in response to low blood pressure. Renin's primary role is to catalyze the conversion of angiotensinogen to angiotensin I. Through a series of reactions involving the enzyme angiotensin-converting enzyme (ACE), angiotensin I is converted into angiotensin II. This potent vasoconstrictor not only directly elevates blood pressure by narrowing blood vessels but also stimulates the adrenal cortex to release aldosterone. Aldosterone then promotes sodium and water reabsorption by the kidneys, which leads to an increase in blood volume and pressure. Furthermore, angiotensin II triggers the release of another hormone called antidiuretic hormone (ADH) from the pituitary gland that also aids in water retention, bolstering the efforts to stabilize blood pressure and volume.
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