← 🩸 MedTech

🩸 The Renin-Angiotensin-Aldosterone System: How the Body Balances Blood Pressure and Sodium

Blood pressure:
Aldosterone:
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🩸 The Renin-Angiotensin-Aldosterone System: How the Body Balances Blood Pressure and Sodium

The interactive 3D simulation visualizes the full RAAS cascade in sequence, from renin release by kidney juxtaglomerular cells through angiotensin I and II formation in the lungs to aldosterone-driven sodium and water retention in the kidney, showing how each step compounds to raise blood pressure over time.

🔬 What It Demonstrates

The interactive 3D simulation visualizes the full RAAS cascade in sequence, from renin release by kidney juxtaglomerular cells through angiotensin I and II formation in the lungs to aldosterone-driven sodium and water retention in the kidney, showing how each step compounds to raise blood pressure over time.

🎮 How to Use

Adjust the starting blood pressure or blood volume slider to simulate hemorrhage, dehydration, or a low-sodium state, then watch each hormone activate in sequence and observe how blood pressure and blood volume recover over a simulated timescale of minutes to days.

💡 Did You Know?

A single pass of blood through the lungs converts most circulating angiotensin I into angiotensin II, meaning the lungs, not just the kidneys, are an essential organ in blood pressure regulation.