Revealing the Dust-Removing Organs of the Human Body_Tibetan Health Knowledge Hall_Baidu Space

by 60888888 on 2010-04-01 10:42:46

The worst weather forecast said that the sand would attack the north again, so some people worried, would the sand particles floating in the air invade our body through breathing? "In fact, the human body is born with a purification effect. The secrets of dust-removal organs in the human body should be revealed from the nasal cavity, throat, bronchus to alveolus. They are the "dust removers" of the body, safeguarding our health on windy and sandy days.

1. Nasal cavity is the first line of defense. Air must pass through the nose hair when it is inhaled from the nostrils. At this time, the dense nose hair is like a sieve, which blocks the larger particles of dust and mud in the air here, so that the air is filtered and purified. The dust attached to the nose hair will be blown out together with the mucus in the nasal cavity to form snot. When the air goes further inside, it will come into contact with the mucous membrane. All the mucosal cells have cilia, like tens of millions of brooms sweeping backward continuously, playing a role in cleaning dust. The glands on the mucosa can also produce a large amount of secretion, which sticks to the dust particles and increases the humidity of the gas.

2. Pharynx strictly guards the second barrier. The pharynx is not only the passage for airflow in and out during breathing, but also has the function of regulating temperature and humidity of the inhaled air and cleaning. The mucosa in the throat will stick to the leaked dust particles again. When there are more things, they will stimulate the nerves and cause coughing, and the airflow sprayed out at this time can shoot out the dust.

3. Bronchus filters and purifies. The trachea and bronchus are like the branches of an inverted tree, becoming finer and denser from top to bottom. The inner membrane of the trachea is covered with ciliated epithelial cells, and there are a large number of cilia moving here and mucus is produced. Fine dust particles and bacteria in the air will be stopped when they pass here.

4. Alveoli clear dust again. There are very few dust particles in the air entering the alveoli through the bronchioles, and they are very small. At this time, the main way to remove dust particles and bacteria relies on the phagocytic action of macrophages. After the macrophages engulf the dust particles or bacteria, one is discharged through the mucus and cilia transport system in the trachea, and the other is processed through the lymphatic system.

These parts of the human body can indeed play a role in cleaning and removing dust, so people need to learn how to protect them to avoid affecting their purification function. First, smoking is prohibited because the toxic substances in tobacco will reduce the dust removal and purification function and make it diseased. Second, when the dust particles in the air are too large, you need to wear a mask to reduce the harm of dust to the human body. Finally, do not dig your nose or pull out nose hair casually, and if you have rhinitis, pharyngitis, acute and chronic bronchitis, etc., you need to seek treatment in time.