Cardiac Cycle in Physiology: Events of Heartbeat, Systole and Diastole Explained
1:34
YouTubePHARMA TECHNOLOGY
Cardiac Cycle in Physiology: Events of Heartbeat, Systole and Diastole Explained
In this lecture, we will study the cardiac cycle in physiology and understand the sequence of events that occur during one complete heartbeat. This video explains the different phases of the cardiac cycle, including atrial systole, ventricular systole, and diastole. You will learn how blood flows through the heart chambers, how heart valves ...
67 views1 month ago
Heart Cycle Animation
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
0:06
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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