The Renal Powerhouse: How the Kidneys Regulate Blood Pressure

What role does the renin-angiotensin-aldosterone system (RAAS) play in the kidney's regulation of blood pressure?

The role are :-

Low Blood Pressure Response:

• Kidneys release the enzyme renin when blood pressure is too low.
• Renin triggers chemical reactions leading to blood vessel constriction and fluid retention.
• This action increases blood volume and pressure, restoring healthy levels.

High Blood Pressure Response:

• Kidneys increase urine production to remove excess fluid, lowering blood volume and pressure.

Renin-Angiotensin-Aldosterone System (RAAS):

• Activated when blood pressure drops, regulating blood pressure.
• Renin stimulates the production of angiotensin I.
• Angiotensin I is converted to angiotensin II, a potent vasoconstrictor.
• Angiotensin II stimulates aldosterone production, promoting sodium and water retention in the kidneys.
• This process increases blood volume and pressure.

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