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Here is the circulation after birth that you should know before the fetal circulation ↓
• 血液の流れを覚える! 体循環/肺循環/門脈など
[Supplement]
The baby in the tummy actually has a blood flow that is quite different from ours,
The flow is called the fetal circulation.
And the fetal circulation includes umbilical veins, arterioles, venous vessels, foramen ovale, and ductus arteriosus (botaro canal).
It is made up of special blood vessels that we do not have.
[Supplement 2]
Oxygen-rich blood that arrives in the right atrium through the inferior vena cava easily flows into the foramen ovale instead of the right ventricle, achieving efficient and rapid oxygen supply to the brain.
On the other hand, oxygen-poor blood returning from the brain to the right atrium tends to flow into the right ventricle instead of the foramen ovale.
[Supplement 3]
The special blood vessels of the fetus finish their role and occlude the moment they breathe air for the first time in their life.
Then, the pulmonary circulation similar to ours begins and begins to take in air from the atmosphere.
Living things are amazing ...
Production: Medic Media's Nekoo、 Atsushi
Supervision cooperation: Obstetrician Masato Takeuchi
Illustration: Massaman curry
Music
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