The nasal cavity, as the starting station of our life and breathing, has a complex and fine anatomical structure and undertakes a number of important physiological functions. Through the nasal anatomy model, we can more intuitively understand and explore these physiological functions.

First of all, the nasal cavity is the main performer of respiratory function. The mucous membrane inside the nasal cavity is rich in capillaries and mucus glands, which allow the nasal cavity to humidify and hold the air inhaled. Especially in the cold winter, the humidification and insulation function of the nasal cavity is particularly important to ensure that the inhaled air reaches the appropriate temperature and humidity before entering the lungs, thus protecting our respiratory system from the irritation of cold and dry.

Secondly, the nasal cavity is also the main bearer of olfactory function. The olfactory epithelium is mainly located in the upper part of the nasal cavity and the base of the anterior skull, where the mucous membranes can sense odor molecules in the air and convert them into nerve signals to transmit to the brain. Through the anatomical model of the nasal cavity, we can clearly see the distribution of the olfactory epithelium and the olfactory nerve connected with it. Together, these structures make up our olfactory system, which enables us to perceive the various odors of the world around us.

In addition, the nasal cavity also plays an important role in assisting vocal resonance. The nasal cavity and sinuses are one of the main organs of vocal resonance, which amplify and beautify our voice. When we make a sound, the air resonates through the nasal cavity and sinuses, making the sound louder and clearer. Through the anatomical model of the nasal cavity, we can observe the structural characteristics of the nasal cavity and sinuses, and how they work with the larynx and other vocal organs to produce beautiful sounds.

Finally, the nasal cavity also has the function of purifying air. The hair and mucus in the nose can filter and absorb dust and harmful substances in the air, such as bacteria and viruses. These harmful substances are trapped and removed as they pass through the nasal cavity, thus protecting our respiratory system from contamination and infection.

To sum up, the nasal cavity, as the starting station of our life and breathing, has a complex and fine anatomical structure and undertakes a number of important physiological functions. Through the study and study of nasal anatomy models, we can gain a deeper understanding of these physiological functions, so as to better protect our respiratory health.