2007-10-09 09:56:13 · 4 answers · asked by oredramo 5 in Science & Mathematics ➔ Medicine
Actually, the heart is more in the middle, with its apex pointing to the left. There are rare persons with the heart pointing to the right, called dextrocardia.
In the embryo, the heart begins to develop during the third week after fertilization. It forms from paired vessels on each side of the primitive foregut. These vessels move centrally and fuse, forming the a tubular structure that begins to pulsate. Vessels in the primitive branchial arches become the aorta and other structures. A long series of genetically programed events ensues to form the heart. Various developmental errors can occur, producing a wide variety of congenital heart defects. If you are interested, a look into a textbook of embryology would be enlightening.
2007-10-09 12:45:45 · answer #1 · answered by greydoc6 7 · 0⤊ 0⤋
The reason it leans slightly to the left is arbitrary and just a product of evolutionary development. The reason why it leans at all to one side is not arbitrary however. It's because you have a four chambered heart; one of the ventricles is bound to be larger, which causes the leaning. It's consistency (except for rare genetic diseases where the organs are on the opposite side for some people) is important because many other organs are positioned accordingly. Imagine having our larger right lung on the same side as the heart! Ouch, it'll be crowded there.
2016-05-20 00:42:51 · answer #2 · answered by candi 3 · 0⤊ 0⤋
Because the liver is on the right!
People are born with it mirrored ( Situs inversus) and it doesn't make a difference( unless it was caused by a problem called PCD) , probably it was like that because it eveolved that way and the other side didn't evolve too had it it would probably be common for it to be mixed.
2007-10-09 10:06:27 · answer #3 · answered by Anonymous · 0⤊ 0⤋
thats where God decided to place it
2007-10-09 14:50:48 · answer #4 · answered by jhtlc22106 2 · 0⤊ 0⤋