![]() ![]() The septal cartilage is connected superiorly to the lateral cartilages and inferiorly to the anterior nasal spine. ![]() It supports the soft tissue of the nose and reinforces the nasal structure by splitting it in two. The nasal septum forms the central part of the nose, and it is composed of the vomer posteriorly, and inferiorly it's composed of the ethmoid and the septal cartilage. The nasal septum supports the cartilage itself. The cartilage is composed of the septal cartilage, the bilateral (greater) alar cartilage, the lateral cartilages, the lesser alar cartilage, and the sesamoid cartilage. The cartilage supports only the nasal bones, ethmoid bones, maxillae, and vomer. These are all supported by the underlying structures, which are the bones, cartilage, muscles and subcutaneous fat. The nose is composed of the root, dorsum tip, and columella (the part between nostrils) externally, while the other parts of the nose are composed of the ala, alar sulcus and nostrils. The average length of the nasal bones is 2.5 cm. The thickness of the bones differs, but it's the thickest at the nasofrontal suture. At the nasofrontal suture, the nasal bones fuse with the frontal bone this is called the nasion. Two paired nasal bones with the ascending process of the maxilla make up the bony vault (upper third) of the nose. The skull bones (frontal, nasal, and maxillae) take part in forming the temple of the nose, and most of its external appearance is made up by the soft tissue structures underlying rather than the bones. ![]()
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