There are such organs in the human body that have lost their significance in the course of evolutionary development. this - Rudimentary human organs. The existence of such fads of nature in ourThe days are not justified, but are stably duplicated from generation to generation. Although most of the rudiments are not needed, many continue to perform useful functions for the person.
Redaction "so simple!" Will tell you what organs in the body are rudimentary and connect the modern person with his distant ancestors.
Coccyx is nothing more than a realtail! Once it served as an organ of balance and social signals. Nevertheless, this vestigial organ is no less important in our day. Its front sections are necessary for attaching the muscles and ligaments of the small pelvis.
To the coccyx is attached part of the bundles of the gluteus maximus, which is responsible for the extension of the thigh. And the coccyx helps to evenly distribute the load on the pelvis. It often happens that Caudal process On the coccyx persists. Benefit now you can easily and without consequences remove such an unpleasant rudiment.
- wisdom teeth
These nasty third molars every now and then spoilLife indiscriminately. But they are real rudiments. Statistics say that many children today are born even without the rudiments of ill-fated eights.
Once, when a person was eating tough food,The jaws were much larger, and the wisdom teeth were an extremely necessary organ that helped to grind and chew food better. Now, when the food is heat treated, and the jaws are smaller, wisdom teeth now and then do not have enough room in the dentition.
They grow as they please, interfering with the overallHygiene of the oral cavity. They are often exposed to carious processes, and indeed the first in the queue for removal. But if you were lucky enough to have healthy G8, Do not rush to remove them. In the future they can become a reliable support for bridges, for example.
This "kid" delivers to the person a lot of trouble. Because appendectomy accounts for about 80% of all surgical interventions in the abdominal organs. And in the Middle Ages appendicitis was considered a death sentence altogether. So what was the use of the vermiform appendage of the cecum?
Our ancestors, he gave the opportunity Digest rough food, And also helped in the functioning of allOrganism. In our days the appendix does not perform serious digestive functions, nevertheless it maintains hormonal, secretory and protective functions.
It is clear why our ancestors needed the muscles surrounding the auricle: they helped Wiggle one's earsTo better hear the approach of predators, relatives or prey. Ear muscles are a classic example of a vestigial organ. Nevertheless people who know how to move their ears,
Still meet, and it looks pretty funny.
- Morganic ventricles of the larynx
These sack-shaped depressions between the true and false vocal folds were needed for our ancestors to create a resonant voice. It helped create a series of specific sounds for communication And protect the larynx.
- Pyramidal abdominal muscle
This muscle is important only for Marsupial animals. Many people do not have it at all. And to the lucky owners of this triangular muscle, it helps to stretch the white line of the abdomen.
Hardly anyone will want to part with his appendix, if he is healthy. The same can be said about wisdom teeth. Nevertheless, it is extremely useful to know about such fads of your body!
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