otsapinnekehystä

Otsapinnekehystä, also known as the nasal septum, is a cartilaginous structure located in the middle of the nose. It serves as a physical barrier that divides the nasal cavity into two separate passages, one for each nostril. The nasal septum is composed of two parts: the perpendicular plate and the alar cartilages. The perpendicular plate is a vertical structure that extends from the nasal bone to the upper lip, while the alar cartilages are horizontal structures that form the sides of the nostrils.

The nasal septum plays a crucial role in the process of breathing and olfaction. It helps to direct airflow into the nasal cavity and prevents objects from entering the lungs. Additionally, the nasal septum contributes to the sense of smell by filtering and warming the air before it reaches the olfactory receptors.

Deviations in the nasal septum, such as a deviated septum, can lead to breathing difficulties and other respiratory issues. In such cases, surgical interventions like septoplasty may be recommended to correct the deviation and improve nasal function.

The nasal septum is a vital component of the nasal cavity, contributing to both the respiratory and olfactory functions of the body. Understanding its structure and function is essential for diagnosing and treating nasal-related disorders.