What else can the nose do if it can breathe?

The nose is one of the five senses of the human body and an important organ of our body. It is an important organ for maintaining normal breathing of the body. In addition to the breathing function of the nose, the nose has many other functions. The nose has the function of smell, which can filter and clean, and can prevent some dirt from entering the body through the nose. Let us learn about this aspect.

What else can the nose do if it can breathe?

In addition to smelling, it also has the functions of filtering, cleaning, heating, humidifying, resonating, reflecting, relieving fatigue, immunity, protecting the head, and excreting tears. ”

The nose is located in the center of the face and is the gateway to the human respiratory tract. It has two nostrils with many nasal hairs inside. When people breathe, nose hair acts like a loyal guard, carefully filtering the air, keeping dust out, and ensuring the cleanliness of the lungs and trachea. The nasal cavity secretes a lot of mucus, which can stick to the dust and bacteria that slip into the nostrils. The nasal cavity also has the function of warming the inhaled cold air.

Some people like to breathe through their mouths when they sleep, which can allow bacteria to enter the respiratory tract and cause diseases in the throat, trachea, etc. The nose is also the organ of smell. According to statistics, there are more than 10 million olfactory cells distributed in an area of ​​only 5 square centimeters on the inner wall of the nose, which are connected to the human brain. In this way, the nose can sensitively distinguish thousands of smells.

Generally speaking, women have a more sensitive sense of smell than men. Even among children and adolescents, girls have a keener sense of smell than boys.

When people breathe, nose hair can block dust and other dirt in the air. Frequent nose picking can easily remove nose hairs, which can cause the body to contract diseases. Therefore, children should not pick their noses too often.

The important role of the nose

1. The nose is used for breathing. Breathing is the most important function of the nose. We can feel the presence of air when air passes through the nose, but we cannot feel the presence of air when it passes through the mouth.

2. The olfactory function of the nose. The olfactory epithelium senses odors in the air. This function makes us start to secrete saliva when we smell fragrance without seeing food. For those foodies, the sense of smell is very important. 3. Filtering and cleaning function of the nasal cavity. After the breathed air passes through the nasal cavity, it becomes very clean and pure, and the air entering the lungs also becomes pure.

4. Warming and humidifying function of the nasal cavity. In winter or cold seasons, the nose can warm the cold air and humidify the dry air.

5. The resonance of the nose. The nose and sinuses together form a resonance box of our human body. The monotonous sound emitted by the vocal cords becomes rich and colorful through the resonance of this resonance box, the sound is clear and loud, the tone quality is mellow and full of personality, forming a different voice for each of us.

6. Reduce the weight of the head and protect the head. Since the nasal cavity is hollow and the sinuses are also hollow structures, the weight of the head is greatly reduced. Moreover, from a mechanical point of view, the hollow structure's ability to resist external forces is greatly enhanced, just like an airbag, which can reduce the impact of external impacts on the brain.