Normal Heartbeat Explained in 3D | How the Human Heart Works Beat by Beat
0:06
YouTubescience videos Lab
Normal Heartbeat Explained in 3D | How the Human Heart Works Beat by Beat
Discover how the human heart maintains a normal heartbeat in this detailed 3D educational animation. This video explains the science behind each heartbeat, including how electrical signals control the rhythm and how blood flows through the heart chambers. Learn about the normal heart rate, the role of the sinus node, and how your body keeps ...
38.1K views4 months ago
Shorts
Here's exactly what happens every time your heart beats 🫀 It starts with an electrical signal from the SA node — your heart's natural pacemaker. That signal tells your atria to contract, pushing blood down into the ventricles. Then the ventricles contract (ventricular systole): 🫀 Right ventricle → pumps deoxygenated blood to the lungs 🫀 Left ventricle → pumps oxygen-rich blood to the rest of your body After that, the heart enters diastole — a brief relaxation where the chambers refill and pre
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