Which of the five major waste organs on men is the least useful?

Sinus. There are four pairs of empty cavity on both sides of the human nasal cavity, which are sinuses. The upper respiratory tract infection may cause sinusitis, leading to otitis media, decreased vision, and even blindness. So what will happen without sinuses?

First of all, your nose may spray blood, and the nasal mucosa covered in the sinus cavity is like a humidifier to regulate the temperature and humidity of the nose inhaling the air.

Secondly, your head will become very heavy and more easily drowned. Because the sinus can reduce the weight of the head and make the head movement more flexible to maintain the body balance, while increasing the buoyancy of the head in the water.

In the end, you may be hurt even more. The air in the sinus cavity can buffer the impact of external forces and protect the eyes and brains. More importantly, the sinus resonates with pronunciation, making the sound more pleasant.

After tens of thousands of years of iteration, there are still many organs in the human body, which is useless. However, just like people who touch fish, these organs will also protect the human body in a unique way. The operation of the entire body system requires each organ to exert its strength.

High -end humans

Only study those things you are interested in

-The end of this issue-

- END -