Blood Flow Through the Heart (Made Easy in 5 Minutes!)

Veins - Carries Blood towards the heart.
Arteries - Carries Blood away from the heart.

Four Chambers
Right Atrium
Right Ventricle
Left Atrium
Left Ventricle

Right Side of the Heart - Responsible for deoxygenated blood going to the lungs.
Left Side of the Heart - Responsible for oxygenated blood that has left the lungs.

Four Valves.
Tricuspid Valve - Exiting from the Right Atrium.
Pulmonic Valve - exiiting from the Right Ventricle.
Mitral Valve - Exiting from the Left Atrium
Aortic Valve - Exiting from the Left Ventricle.

Each of these Valves act as a one way valve to prevent backflow of blood in the system.


Blood Vessesl whihc bring blood to and carry blood away from the heart.


Inferiori Vena Cava - Blood orignates from the trunk visceral organs from the lower body

Superior Vena Cava - Blood orignating from the head and upper body.

These Two together bring deoxygenated blood from the body back to the heart and empty into the right aterium.

The Pulmonary Artery carries the deoxygenated blood away from the heart and to the lungs to be oxygenated.Right and Left pulmonary veins which bring oxygenated blood back to the heart and empty into the left atrium.Aorta carries the oxygenated blood away from the heart to the rest of the body.


Deoxygenated Blood goes to the heart via the superior and inferior vena cava - empties into the right atrium - right atrium contracts the blood through the tricuspid valve into the right ventricle. Right ventricle contracts ejecting the blood through the pulmonic valve into the Pulmonary artery (this is an artery becasue the blood is going away from the heart however it contains deoxygenated blood unlike the other arteries) the Pulmonary artery branches and carries blood to the left and right lungs to receive oxygen and release carbon dioxide.After the blood leaves the lungs , the oxygenated blood is going to return to the heart via the pulmonary vein(veins carry blood to the heart however unlike other veins the pulmonary vein contains oxygenated blood) . The pulmonary veins empty the blood into the left atrium , the left atrium contracts the blood through mitral valve into the left ventricle . The left ventricle then contracts ejecting that blood through the aortic valve into the aorta and onto the rest of the body.

Currently in EMT class, been struggling with the heart. This helped so much!! Thank you for this video, I hope to find more on your videos!

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Not only was this understandable, but I was also able to take really great notes to study. Pro tip: you can put a piece of paper on your laptop/tablet screen and trace the image of the heart in the video.

Can you do fetal circulation too? Please and thanks!

so nice it really made it easy

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I am in 7th class this man literally explained it sooo welll it helped me understanding the chapter💖😊

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TPMA. You made this a lot easier to remember.

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thank you so so much this was so helpful. I feel more comfortable going into my lab exam now!!

Also we can take DETOX TEA from planet Ayurveda it supports healthy blood circulation

Literally recommend this video to all beginning medical students out there

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More biology lessons

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Awesome, very impressive and helpful as well as learning post. Thanks.

Who?

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Wow this is great

YES!!! I’ve been trying to Understand this for my test and I’ve been studying for the longest and I finally get it

Simply brilliant friend!!! Keep the good work going....

Amazing!!! How many pulmonary arteries and veins are in the Heart?
And those 3 outlets emanating on top of the aorta, what are their functions i.e where do they take oxy. blood to?

You have literally saved my life!!!!.. I don't know how to thank you.
I was panicking a lot at the very last moment of exam and it was the only topic left to cover. And you just cover it all within 6 minutes.
I really hope your channel grows and helps a lot of students.
I hope you do well.
Have a great day buddies ❤️

What I'd like to know (see) is how the heart beats cycle through in this diagram. For example, do both Atrium chambers beat (contract) together then followed by both Ventricle together or something completely different? AND, how the EKG waves get displayed as the chambers contract and relax (P PR QRS ST T)
I would LOVE to see like a split screen of heart beating while displaying what the EKG is scribing. In slow motion would be best.

Amazing video!!!!! I understand the blood so well now!!

Pheeeeew this was so helpful, I had to go through many videos before I found yours, I completely understood the process, you have helped me to understand cardiovascular physiology some more. Thank you

Love It. Thank You.

Finally I understood what heart is actually

Nursing student here. Thanks, this reenforced what I knew. Just making sure. Just subbed to your ch. Thank you!

you explained very well
I understood it very fast and also I love this channel when it comes to studies

Thank you so much for this. You literally saved me! You made it so easy to understand.

I literally for the life of me could not understand this until now!!!! Thank you SO much!!!!!! Amazing video!!!

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thus s very clear and understandable