The human body is absolutely inherently. But, as Charles Darwin argued, the body has absolutely useless and unused parts that the person has inherited in the course of evolution.
Of course, such statements can be challenged, but the facts are a stubborn thing. And we suggest that you familiarize yourself with some of them. Perhaps in the future these parts of the body will disappear altogether.
1. Hair on the body
Our eyebrows protect our eyes from sweat. And for men, eyebrows play an important role in attracting the attention of the opposite so far. As for the rest of the hair on the human body, their functional significance is not confirmed, and they actually do not play any role.
2. The paranasal sinuses
The paranasal sinuses are cavities with holes in the facial part of the skull. The most important function of the sinuses is to reduce the weight of the facial bones and create a resonance in the pronunciation of sounds.
3. External ear muscles
Some animals, such as rabbits and dogs, can move their ears with an anatomical structure. The person also has similar muscles, which, in fact, do not carry any function in themselves.
4. Wisdom Teeth
Previously, people had to chew plants to get enough calories for the body. Today, only 5% of people use useless wisdom teeth, which most often bring discomfort and problems.
5. Neck ribs
A set of cervical ribs is a congenital anomaly of the cervico-thoracic region in the form of additional ribs, which appears in 1% of the world's population. Most likely, a special feature for a person was from reptiles. Very often such an anomaly causes various health problems, most often with nerves and arteries.
6. The long palm muscle
The long palm muscle extends from the elbow to the wrist and is absent in 11% of the people. Some scientists believe that the lack of this muscle affects the power of capture and limits the scope of human activity. In fact, such a theory is not proved and is only an assumption.
7. Men's nipples
Men and women have nipples, because during development of the fetus in the womb in the early stages the child is sexless. Therefore, men as well as women have nipples. But because of the lack of the necessary level of prolactin to stimulate lactation can not produce milk.
8. Muscles lifting hair
These little muscles, located behind the hair on the human body (except only the hair on the chin and pubis), react to the change in the surrounding climate, thus causing "goose skin" with hairs protruding upward. Such a reflex went to a man from animals that not only could regulate body temperature, but also "bristle with fury".
9. Appendicitis
This narrow muscle tube, the appendix of the cecum, served as a special area for the digestion of cellulose when the human diet consisted more of plant matter than animal protein.
10. Thirteenth rib
Our closest relatives - animals, chimpanzees and gorillas - have an extra set of ribs. Most people usually have 12 pairs of ribs, although 8% of adults have a thirteenth pair.
11. Toes
Scientists have found that people are used to walking and balancing more along the middle line of their legs. Today, many people use the big toe for balancing, shifting the center of balance inside. This means that a man is accustomed to rely on the toes of the feet to maintain the balance of the body. True, recently people are paying less attention to this. If this trend continues, then a person will not need fingers on his legs at all.
12. The tailbone
The tailbone is also called the tail part of the tail, which the person lost during evolution. Mammals use the tail for balance and communication - people do not need a coccyx.
13. The third eyelid
A common ancestor of birds and animals could have a membrane that protected the eyes. A man has only a part of the third century in the inner corner of his eye.
14. Darwin's tubercle
A small tubercle on the curl of the auricle sometimes occurs in humans. Darwinov bugorok got to man and some species of monkeys from primitive primates and mammals with a pointed form of ears. The point is the remainder of this form of the ear.
15. Subclavian muscle
A small oblong muscle is located under the shoulder from the first rib to the collarbone. The subclavian muscle would be useful to man if we still walked on all fours. Someone does not have such muscles, but someone can boast a whole pair on both sides of the body.