Science: Circulatory system - Heart
Videos:
https://www.youtube.com/watch?v=a-uF50BgMGM
https://www.youtube.com/watch?v=CWFyxn0qDEU
https://www.youtube.com/watch?v=SHFfnBovflo
Dirty blood => deoxygenated blood.
Clean blood => oxygenated blood.
Each artery takes blood away from the heart(each of them carries clean blood except pulmonary artery which takes dirty blood from heart to lungs).
Each vein takes blood to the heart(each of them carries dirty blood except pulmonary vein which takes clean blood from lungs to heart).
Atriums(upper chambers) => receive blood.
Ventricles(lower chambers) => pump the blood away.
Heart:
Right side(Atrium + Ventricle): to process dirty blood.
Left side(Atrium + Ventricle): to process clean blood.
Artery connections to the heart:
Right side => Connected to exactly one Artery(Pulmonary) to send dirty blood to lungs.
Left side => Connected to Aorta to send clean blood to the body and also connects to left and right coronary artery to send clean blood to heart muscle.
Vein connections to the heart:
Right side: connects to the majority of the veins to receive dirty blood.
Left side: connects primarily to the pulmonary vein to receive clean blood from lungs.
Questions:
1. Which is closer to skin surface? Veins or arteries? What are the advantages of that design? Which sites in body have arteries closer to the skin surface?
2. Why do we need atria? Are ventricles not enough? Atria simply store the blood and pass it on to the ventricles? Is this "separate chamber design" replicated in human made machines as well?
https://www.youtube.com/watch?v=a-uF50BgMGM
https://www.youtube.com/watch?v=CWFyxn0qDEU
https://www.youtube.com/watch?v=SHFfnBovflo
Dirty blood => deoxygenated blood.
Clean blood => oxygenated blood.
Each artery takes blood away from the heart(each of them carries clean blood except pulmonary artery which takes dirty blood from heart to lungs).
Each vein takes blood to the heart(each of them carries dirty blood except pulmonary vein which takes clean blood from lungs to heart).
Atriums(upper chambers) => receive blood.
Ventricles(lower chambers) => pump the blood away.
Heart:
Right side(Atrium + Ventricle): to process dirty blood.
Left side(Atrium + Ventricle): to process clean blood.
Artery connections to the heart:
Right side => Connected to exactly one Artery(Pulmonary) to send dirty blood to lungs.
Left side => Connected to Aorta to send clean blood to the body and also connects to left and right coronary artery to send clean blood to heart muscle.
Vein connections to the heart:
Right side: connects to the majority of the veins to receive dirty blood.
Left side: connects primarily to the pulmonary vein to receive clean blood from lungs.
Questions:
1. Which is closer to skin surface? Veins or arteries? What are the advantages of that design? Which sites in body have arteries closer to the skin surface?
2. Why do we need atria? Are ventricles not enough? Atria simply store the blood and pass it on to the ventricles? Is this "separate chamber design" replicated in human made machines as well?
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