We finally know why a belly button becomes an ‘innie’

It turns out that the Belly button is from the least studied parts of the human body. But now one of his great riddles has now been decided – why most people have Indini or the “concave navel” button. This may be due to the previously unknown structure that pulls the navel inward.

The discovery arose when a team of researchers tried to determine the best methods for abdominal and hernia repair operations, which often include cuts for the navel button, also known as the navel or navel.

In particular, the researchers wanted to reduce the frequency of how “umbilical naughty hernias”, where muscle weakness caused by the previous surgery abdominal fabric Trying to push through.

Satori Muro At the Tokyo Institute of Science in Japan, it says that, despite the fact that everyone has one, and sees it almost every day, it is surprising that the anatomy of the Pupik is almost “completely not reported”. The team conducted a detailed microscopic analysis of the region around the navel button on five donated human bodies, and then created a three -dimensional model of the structure.

The Belly button is the rest of the fetal umbilical cord, which protrudes through the abdominal wall to connect to the placenta until birth. After birth, approximately 90 percent of people, Smbilicus Scar heals a concave marvel. But Muro says that the team discovered a “fibrous tunnel structure” immediately under the umbilical skin, which continues “smoothly” in deep fabrics. These deep fabrics, stomach fasciaStabilize your stomach and keep our organs in place.

“The structure consists of tightly oriented collagen fibers located around the circumference, like a sleeve, which we called the“ umbilical shell, ”he says. “This shell, in the visible one, fixes the umbilical depression on deep fascia in all directions.” This helps to maintain a characteristic form of abdominal buttons.

Nevertheless, the team was not able to study someone with “Outie”, so the participants say that it will take more work to understand how the umbilical shell varies among different people.

“Individual differences in the development or reliability of the umbilical shell can contribute to the fact that bubble efforts,” says Muro.

Kat Sanders The University of Sydney in Australia says that the “Mado” button was definitely an abandoned part of human anatomy. But further research will be required, since five items are not a large enough number to summarize everyone about Navels.

“The paper shines on the parts of our anatomy, which we did not look at a lot, and, obviously, there are many surgical consequences for the region, because it is often used in laparoscopic operations,” says Sanders.

Michelle Moskov The University of the New South Wales in Australia says that this study helps us understand, which enhances the navel structurally and, possibly, how to perform operations on a keyhole is safer.

“One of the relatively common complications of operations on the abdominal cavity is the umbilical hernia,” says Moskova. “This is when parts of the abdominal contents, such as the intestines, are stretched through the weak part of the abdomen. In the umbilical hernia, they are expelled through the navel. “