Anterior nasal spine

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Anterior Nasal Spine

The Anterior Nasal Spine is a bony projection at the base of the nasal cavity, which is part of the human skull. It is located at the midline, and projects from the lower part of the nasal septum (the wall dividing the left and right nasal cavities).

Anatomy

The Anterior Nasal Spine is a part of the maxilla, one of the two major bones that form the upper jaw and the lower part of the skull. It is a small, pointed eminence that projects from the lower part of the nasal septum. It is located at the intersection of the perpendicular plate of the ethmoid bone and the septal nasal cartilage.

Function

The Anterior Nasal Spine serves as an attachment point for the septal nasal cartilage, which forms the anterior part of the nasal septum. This structure plays a crucial role in the shape and function of the nose, contributing to the process of respiration and the sense of smell.

Clinical Significance

The size and shape of the Anterior Nasal Spine can vary greatly among individuals. In some cases, a prominent or elongated Anterior Nasal Spine can cause discomfort or interfere with normal nasal function. It may also be a factor in certain types of nasal deformity or nasal obstruction. In such cases, surgical intervention may be necessary to reduce the size of the spine and improve nasal function.

Etymology

The term "Anterior Nasal Spine" is derived from the Latin words "anterior" (meaning "before" or "in front of"), "nasal" (pertaining to the nose), and "spine" (a sharp, pointed process or projection).

See Also

References


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  • Anterior nasal spine

  • Lateral view of anterior nasal spine of maxilla

  • Animation of anterior nasal spine of maxilla

  • Animation of anterior nasal spine of maxilla

  • Anterior view of anterior nasal spine of maxilla

  • Anterior nasal spine

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Contributors: Prab R. Tumpati, MD