This model helps the students to understand the external and internal structures of the nasal cavity.1. external nose: shows the section of the nasal bones and cartilages. 2. Nassal cavity: on the lateral nasal wall show the superior,middle and inferior nasal chonchae project medially into the nasal cavity foming the superior, middle and inferior nasal meatuses.3. Paranasal sinuses: shows the frontal, shpenoid and maxillary sinuses.Life size. On stand with base