A cavity above and behind the nose that is limited by the nasal bone and the soft and hard palate.
1
This opening communicated with the nasal fossa by a fracture of the palatine and maxillary bones; the employment of an obturator was necessary.
2
There were no signs of nose, nor cartilage separating the entrance of the nostrils, and the vault of the nasal fossa could be easily seen.
3
The olfactory recess (OR) is a restricted space at the back of the nasal fossa in many mammals that is thought to improve olfactory function.