We just learned about the Choana.
Another part of the nose is the Concha.
Inside the nose, the concha are long bony shelves that help split up the air coming in so the air comes in nice and steady.
Part of this nose has some nerves and blood vessels coming in that some people think are the cause of brain freeze.
(from: wikipedia - nasal concha)
Kid Facts - Blast from the past: Lymphoma
