<P> The nasal septum (Latin: septum nasi) separates the left and right airways in the nose, dividing the two nostrils . </P> <P> It is depressed by the depressor septi nasi muscle . </P> <P> The fleshy external end of the nasal septum is sometimes also called columella . The nasal septum contains bone and hyaline cartilage . It is normally about 2 mm thick . </P> <P> The nasal septum is composed of five structures: </P>

What type of supporting tissue is lower part of your nose made of