The human body has several muscles that are solely responsible for moving down. They are all close to each other and play a very important role in the life of each of us.
The muscles of our body are unique. It has been formed over millennia, and reflects the specificity of us as a biological species. A number of details of the body have analogues in living nature, and it is interesting to observe them from the point of view of comparative physiology. However, humans also have unique devices.
general description
There are very few sharpened under one specific muscle movement in our body. Those that work exclusively on lowering are three, and they are all located in the area of the face. The most original of these is the muscle that lowers the lower lip. It is attached to the lower jaw and runs from the chin hole to the lower lip. This organ is paired.
Muscle lowering the angle of the mouth
In addition to the muscle that lowers the corners of the mouth, there are those that lower the eyebrows and septum of the nose. The movements of the latter are difficult to notice. They are performed at the moment when a person diligently draws air through his nostrils. If there is a desire to contribute to the creation of hypotheses about the future of humanity, then we can assume that, if necessary, this muscle will become the basis for the formation of the trunk. The scientific component of such a forecast is extremely small, because our view adapts to the environment through its change, and a trunk appears in those representatives of the fauna who do not have limbs that can capture objects.
Destination
With the muscle that is in the nose, everything is clear, but the movements of the corners of the mouth and eyebrows are not explained by pragmatic physiological reasons. They do not participate in the chewing process, do not improve the characteristics of the organs of touch, which are placed on the face. Their existence is justified solely by the social nature of man.
Facial expression is involved in non-verbal transmission of information
People in the wild are able to survive as a team. To coordinate their actions in the process of completing a complex task, it is necessary to exchange information. Speech did not arise immediately in primates, and indeed it cannot fully ensure the communication of a family living in the lap of nature. Even modern tribes of hunters and gatherers use non-verbal methods of transmitting messages. During the hunt, they avoid sounds that will allow their prey to discover a biped predator. Hunters talk either with a bird-like whistle, or with facial expressions and gestures.
The study
Facial expressions have always been interested in artists and sculptors. One of the first who gave a detailed description of the facial muscles was the famous Leonard da Vinci. He dissected dead bodies and invited old men into his workshop to pose, on the exterior of which often repeated movements left an imprint in the form of facial folds. For a long time, doctors treated the muscles of the head utilitarily, without paying special attention to the little things in the form of muscles responsible for lowering the corners of the lips, or eyebrows.
Drawing by Leonardo da Vinci
At the beginning of the 20th century, scientists opposed Nazi and racist theories. To prove that skin color does not play a role, representatives of various races and ethnic groups were invited to describe the emotions recorded on the photo portrait. All subjects accurately guessed the mood of the model. After the pundits gave an explanation to the subject of research, practicing doctors had to work with the facial muscles. During World War I, surgeons were urgently needed to restore the appearance of injured people with injuries to their faces.
Cosmetic problems
As soon as wrinkles appear on the face, a search begins for the causes of their occurrence. There are originals that find them muscular. According to their version, with age, small muscles lose their tone, which is reflected in the appearance of completely unnecessary folds. The drooping ends of the mouth, of course, can be attributed to the decay of a known muscle.
Such statements indicate a lack of medical education among their authors. The lowering muscle is capable of straining. If she is decrepit, then her lips will remain in place. But from excessive love for the facial expression of emotional tales of annoyance and disgust, wrinkles on the skin may appear. Also, disorder in the area of the nasolabial triangle will be for those who do not monitor the health of their teeth, have an incomplete dentition - there is nothing to lean on thin muscle tissue if there are no teeth.
Facial folds on the face of Angela Merkel - lovers of working with muscles that lower the ends of the lips
Mimic folds occur in those who like to keep one expression on their faces for a long time, make faces of the same type. Age wrinkles appear due to improper skin care and thinning of subcutaneous fat. The latter threatens young people who often sit on strict diets.
