Definition
The 'nasal septum' is the wall inside the nose that divides the nasal cavity into two nostrils. Think of it as the center divider on a highway, separating traffic flow. It's made of bone and cartilage and is covered by a mucous membrane. Unlike a solid block, it's somewhat flexible. It helps to direct airflow and support the structure of the nose. Deviations in the septum can cause breathing problems. It is like the motherboard of your nose.