Large, air-filled space above and behind the nose in the middle of the face.
1
So large is the cavity of the nose, that a man may thrust his arm right into it.
2
Dempster reports an instance of the lodgment of numerous live maggots within the cavity of the nose, causing sloughing of the palate and other complications.
3
The vomer serves as a thin and delicate partition between the two cavities of the nose.
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