Your nostrils are your nasal passage
The roll of a nasal passage and mouth is so you can breath in air.
You should'nt
Nasal-refers to nose on face.
nose
It is part of your nose. There.
sinus
It is inflammation of the nose or nasal passage
The Nose. XD
Mucus
Your adenoid is a growth of tissue at the back of the nasal passage which helps fight infection.
Lets you smell and filters out germs