3 ms·
Not a medical expert, but Encyclopedia Britannica seems to say that the nasal cavity counts as an internal space: https://www.britannica.com/science/nasal-cavi
by Alex3917 7y ago
Not a medical expert, but Encyclopedia Britannica seems to say that the nasal cavity counts as an internal space:
https://www.britannica.com/science/nasal-cavity https://www.britannica.com/science/nasal-cavity