The infant heart.
While the infant is still in the mother's womb. There are two sources of blood flow. The mother's heart, and the infant heart. The problem with this is that one cannot conflict with the other. So the Creator inserted a special vein, that actually has a muscle, that connects both arteries as shown below.
This vein allows the heart to pump in parallel with the mother's heart. Problem is, it cannot stay open after being born. Infant would die with in minutes. So when the doctor slaps the baby on the rear to make it cry, the lungs are used for the very first time. This enriches the blood with a high percent of oxygen. When this highly enriched oxygen reaches this special connecting vein, the muscle around it constricts it shut, and it heals being shut for the rest of the infant's life. This turns the heart from being a parallel pumping mechanism, to a non-parallel pumping mechanism that is required to sustain life from that point forward. But this is not all that happens....
When the vein closes, it creates a high and low pressure side to the heart. This higher blood pressure makes a flap close that is normally open for the first nine months (like a door closing by itself do to air pressure being different from with in a building compared to outside) on the back side of the heart (shown by arrow). Which completes the process in which the heart now can operate on it's own. If the second process does not work, this creates a problem called a "hole in the heart". If not detected in time, baby can suffer complete heart failure in just a few weeks. If bad enough, baby can die with in a few hours. But there's even more...
When the infant heart is working in parallel with the mother's heart. The open flap inside the heart acts as a separating device for oxygenated (red arrow), and unoxygenated blood (blue arrow). This is important because you don't want the two mixing which lowers oxygen percent in the blood that flows to the babies vital organs. There is two veins that supply both types of blood to this section of the heart. The unoxygenated supply is located right next to this flap. While the oxygenated is on the other side. So the exact positioning actually makes the oxygenated blood push the unoxygenated blood into another chamber, which is where it departs back into the mother to become oxygenated again.
This flap not being open, or being obstructed would reduce oxygen getting to the babies vital organs. Which would affect the development of the child in the womb.
Evolutionists claim the heart evolved. On this issue, I really don't see how. One mess up in this design means death for the offspring. There is no room for error, or random chance. In the mutation process it would take to achieve this. There is only one shot at getting it right. And if the offspring do not survive, the whole species goes extinct. And in the survival of the fittest, if offspring is weak from defect, it won't survive either. So as far as evolution goes, it's a lose lose situation.
More evidence?
| Tetralogy of Fallot is a common syndrome of congenital heart defects. This condition, present in utero, is caused by the narrowing of the pulmonary artery and a hole between the ventricles. When the baby is born and begins to breathe on its own, the baby turns cyanotic, or blue, due to the deoxygenated blood that bypasses the lungs because the narrowed pathway and the hole between the ventricles has remained open. Referrence: http://www.healthofchildren.com/T/Tetralogy-of-Fallot.html |
