Nasal spine Posterior (Spina Nasalis Posterior) is a bony structure located on the posterior surface of the nasal septum. It is one of the six bones that make up the facial skeleton.
The posterior nasal spine is a vertical bone that runs across the entire nasal septum and is connected to two other bones - the anterior nasal spine and the inferior nasal spine. It plays an important role in shaping the shape of the nose and provides support to the nasal cavity.
During human development, the posterior nasal spine begins to form at approximately 10-12 weeks of gestation. In the future, it continues to grow and develop, ensuring the formation and growth of the nasal septum, as well as other facial structures.
In adults, the posterior nasal spine is about 2.5 cm long and about 1 mm thick. It consists of two parts - upper and lower, which are connected to each other. Superior Nasal Spine Posteriorly located on the anterior portion of the nasal septum and plays an important role in maintaining the shape of the nose. The lower part of the nasal spine Posterior is located at the back of the nasal septum and serves as a support for the nasal cavity.