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One heart beat moves one portion of blood into the next chamber or vessel, every beat pushes some in and some out but the same blood does not go all the way through the heart in one beat. For the same portion of blood to complete a full circuit through the heart and the rest of the circulatory system, it typically takes about one full heartbeat cycle: 1. **First Heartbeat:** - Blood enters the right atrium from the body. - Blood is then pushed into the right ventricle. 2. **Second Heartbeat:** - Blood is pumped from the right ventricle to the lungs via the pulmonary artery. - Blood gets oxygenated in the lungs. 3. **Third Heartbeat:** - Oxygenated blood returns to the left atrium from the lungs. - Blood is then pushed into the left ventricle. 4. **Fourth Heartbeat:** - Blood is pumped from the left ventricle to the rest of the body via the aorta. So, it takes about four heartbeats for the same portion of blood to travel through the entire heart and circulatory system.
Amazing video but I have a question @Learn Easy Science: Why does the oxygenated blood go back into the heart and more importantly, where does it come from?? I thought the blood without oxygen (blue) went into the heart and the heart transformed it into blood with oxygen ( red) which would then go to the rest of the body. Is it the lungs that do the transformation? Because from what I understood, the heart in this case just serves as an organ for blood transportation and to distribute it to the body.
![Anatomy of the Heart: Structures and Blood Flow [Cardiology Made Easy]](/img/n.gif)
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This was so helpful. I am studying grade 8 Biology and I just learnt so much. I had missed my Biology class and was worried about not doing well in Biology, but your explaination was so precise even my Biology teacher could not have done such a fantastic job. Hope you everyone feels the same
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The mitral valve is also called bicuspid valve
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One heart beat moves one portion of blood into the next chamber or vessel, every beat pushes some in and some out but the same blood does not go all the way through the heart in one beat.
For the same portion of blood to complete a full circuit through the heart and the rest of the circulatory system, it typically takes about one full heartbeat cycle:
1. **First Heartbeat:**
- Blood enters the right atrium from the body.
- Blood is then pushed into the right ventricle.
2. **Second Heartbeat:**
- Blood is pumped from the right ventricle to the lungs via the pulmonary artery.
- Blood gets oxygenated in the lungs.
3. **Third Heartbeat:**
- Oxygenated blood returns to the left atrium from the lungs.
- Blood is then pushed into the left ventricle.
4. **Fourth Heartbeat:**
- Blood is pumped from the left ventricle to the rest of the body via the aorta.
So, it takes about four heartbeats for the same portion of blood to travel through the entire heart and circulatory system.
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God bless you dear i really understand it now. Please can you describe the lungs and functions?
Bahut achha vedio
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great video🙂
Thenkzz💞🙃
Pulmonary valve touching 😢
😂
Please send about coronary circulation
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Most welcome 😊
Remember learning this back at High School, but not in this much detail.
Amazing video but I have a question @Learn Easy Science:
Why does the oxygenated blood go back into the heart and more importantly, where does it come from?? I thought the blood without oxygen (blue) went into the heart and the heart transformed it into blood with oxygen ( red) which would then go to the rest of the body.
Is it the lungs that do the transformation? Because from what I understood, the heart in this case just serves as an organ for blood transportation and to distribute it to the body.