Top Ten “Useless” Organs of the Human Body
Are there really useless organs in the human body? It is unlikely that anyone would want to remove his appendix until it starts to bother him, although it has no apparent function. Here is a list of “not quite useful” organs which nature has endowed us with.
10. Third eyelid
You may not know that you have a third eyelid, but it is in the inner corner of the eye. The third eyelid is the remaining part of “nictitating membrane“, which is still present in some animals, such as chickens, lizards and sharks.
9. Body Hair
Without a doubt, once we had much more hair. About 3 million years ago, we were completely covered by it. But with the emergence of Homo erectus, body hair lost its use.
Scientists do not really know much about sinuses, except for the fact that we have many of them. Hypotheses about their function vary from isolation of the eyes to the change of the voice pitch.
Adenoids “catch” the bacteria, but they are also prone to edema and not resistant to infections, which are often experienced by children. Luckily, with age our tonsils decrease in size, and if they bring any problems, then they are removed.
They have similar function with that of adenoids and are also prone to edema and not resistant to infections.
Coccyx is several fused vertebrae left over from the ancient times, when we used to have tails. Absolutely useless part of the human body.
4. Erector Pili
When we were hairy, thanks to this organ our hair stood on end when we needed to look bigger and scarier. Now, thanks to it we feel tingling on the skin.
3. Wisdom Teeth
Going back to the days when we ate mammoth meat and did not brush our teeth, they tended to spoil quickly and fell out. Then we used wisdom teeth. Now, the presence of toothpastes and brushes made them quite useless.
Darwin argued that the appendix was actively involved in the digestion during the first years of human existence when we used to be plant-eaters, but after we started eating more digestible food, it lost its use.
1. Men’s nipples
No one still knows anything about the purpose of this organ which seems to be completely useless.