"nose" 的定义和意义

What is "nose"?

The nose is a prominent facial feature located in the center of the face, above the mouth, and between the eyes. It serves as a passage for air during breathing and is responsible for the sense of smell. The nose consists of external and internal structures, including the nostrils, nasal cavity, nasal septum, and nasal cartilage. It plays a vital role in the respiratory system by filtering, warming, and humidifying the air we breathe. The shape and size of the nose can vary greatly among individuals and are influenced by genetics and ethnic background. Apart from its functional role, the nose also contributes to facial aesthetics and expressions, making it an important aspect of overall facial appearance.