Uberon definition : The nasal septum separates the left and right airways in the nose, dividing the two
nostrils. It is depressed by the Depressor septi nasi muscle. [WP,unvetted].;
Uberon related term : septum mobile nasi; septum of the nose; septal cartilage;
Uberon Homology note : Whatever the common ancestor of the lamprey and gnathostomes may have looked like,
it most likely possessed a neural-crest-derived premandibular ectomesenchyme closely
associated with the NHP. Invention of the jaw subsequently required a space for the
nasal septum and maxillary process to develop, which might have been provided by subdivision
of the NHP into the nasal placode and the hypophysis (diplorhiny, the state of bilaterally
separated nasal openings, would also have been a prerequisite for this).[well established][VHOG];
The nasal septum separates the left and right airways in the nose, dividing the two
nostrils. It is depressed by the Depressor septi nasi muscle. [WP,unvetted].