How Blood Flows Through the Heart

http://www.interactive-biology.com - In this video, I go through the process of how blood flows through the heart. It shows blood entering via the vena cave to the Right atrium, then getting pumped into the right ventricle, to the pulmonary vein to the lungs, to the left atria, left ventricle, and then via the aorta to the rest of the body.

➟ Video Chapters

00:00 Intro
00:23 Two pictures of the heart
00:48 Heart orientation
01:25 Parts of the Heart.
- Heart Atria
01:39 Heart Ventricles
01:56 Atrioventricular valves (tricuspid and mitral / bicuspid valves)
03:13 Pulmonary / right semilunar valve
03:38 Aortic / left semilunar valve
03:55 Recap - Valves of the heart
04:39 Deoxygenated blood enters the heart.
05:38 Deoxygenated blood enters the lungs via the pulmonary arteries.
06:00 Oxygenated blood re-enters the heart from the lungs.
06:37 Recap - Heart blood flow
07:40 Function of the heart
08:20 Both atria and ventricles contract simultaneously.

Enjoy!

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