09/09/2026
🫀 Human Heart — The Powerhouse of Life
The human heart is a muscular organ about the size of your fist, but it performs one of the most important jobs in your body — pumping blood throughout the entire body.
❤️ How is the heart structured?
The heart has 4 chambers:
🔹 Right Atrium – Receives oxygen-poor blood from the body.
🔹 Right Ventricle – Pumps oxygen-poor blood to the lungs.
🔹 Left Atrium – Receives oxygen-rich blood from the lungs.
🔹 Left Ventricle – Pumps oxygen-rich blood to the whole body.
🔄 Important Valves
The Tricuspid Valve and Mitral (Bicuspid) Valve help keep blood flowing in the correct direction.
🩸 Major Blood Vessels
• Superior & Inferior Vena Cava → Bring blood from the body to the heart.
• Pulmonary Artery → Carries blood from the heart to the lungs.
• Pulmonary Veins → Bring oxygen-rich blood from the lungs to the heart.
• Aorta → Carries oxygen-rich blood from the heart to the body.
📚 Amazing Facts
❤️ The heart has 4 chambers.
🩸 It pumps approximately 5 liters of blood per minute.
💓 It can beat around 100,000 times a day.
🫀 Every heartbeat helps keep your body alive!
Easy way to remember:
🔵 Blue = Oxygen-poor blood
🔴 Red = Oxygen-rich blood
Your heart works 24 hours — take care of it! ❤️
