Disease analysis: 1 nasal root part. This part consists entirely of nasal bones. Near the double-tear mound, the upper end is connected with the downward curvature of the frontal bone. The root of the nose is the narrowest part of the nose and the most severe turning point. 1. External nose: nasal root at the top and nose tip protruding forward at the bottom. The bridge of the nose is between them, and the back of the nose is on both sides of the bridge of the nose. On both sides of the tip of the nose are the alar nasal bones: a pair of left and right midlines are connected, and the alar of the frontal bone is connected to form a nasofrontal suture, and the connection between the outer edge and the eyes is also very sudden. So the contrast in this part changes greatly. But because it is too close to the eyes, don't emphasize its changes too much when painting, so as not to weaken the performance of the eyes. Usually only the contrast near the eye structure is emphasized. Your position is: Fashion Health Network (home page)-Internal basic structure and function of nose-Related pictures-Internal basic structure and function pictures of nose, bridge of nose. This part consists of the lower end of the nasal bone and two nasal cartilage. It is located in the middle of the nose, which is about a standard trapezoid with three obvious planes on both sides. Nose structure map label document list [common sense of plastic surgery] Detailed explanation of nose structure Let's first understand the morphological characteristics of the nose. The external nose is a vertebral body, which is divided into three parts: nasal root, bridge of nose and tip of nose. The root of the nose is the nasal part, which consists of two nasal bones. When describing this part, we should pay attention to the shape and structural changes of the three planes, as well as the sense of mass of the whole trapezoid and the embedding mode of the adjacent parts. 3, the nose part. It is completely composed of nasal cartilage, which is divided into two parts: the tip of the nose and the alar. The tip of the nose looks like a sphere, and its two wings look like hemispheres, so it is obviously different from the trapezoid of the bridge of the nose in physical characteristics. The functional structure diagram of this part of the system is the highest point of the portrait face, which is far from the eyes. We can take it as the second key point of the face and describe it in detail. 4 nasal base. The display of nose structure shows that the human nose is in the middle of the face and plays a very important role in the face. An ugly nose will make people look ugly. If you want to know what the perfect part is, it's actually the bottom of the nose. Because it is in sharp contrast with other parts of the nose in shape after receiving light, we are used to treating it as a special part. The physical feature of this part is the complex structure formed by the turning surface of the tip of the nose and two nostrils. When the turning point is greater than 90, the whole nasal floor is in darkness, and the structural diagram of the nose forms an obvious dividing line between light and dark. Two irregular nostrils produce complex reflections around them, and the boundary between these reflections and light and dark is the difficulty of nose performance, so we should pay attention to its rich light and dark changes. The nose is the largest part of the face, and the external structure of the nose makes the face have strong light and shade changes. The method of depicting this part is flexible, which can not only emphasize the role of light and shade, but also emphasize the role of structure: it can strengthen the treatment or weaken the treatment. The shape of the nose varies from person to person and is an important part of a person's physical characteristics. In the performance, it is necessary to master the overall image characteristics and functional structure diagram in order to portray the part. , suggestions: