Check out the picture for all the parts!
The walls of the nasal cavity are covered with the
nasal lining, which has
mucus-producing cells (cells that produce mucus, slijm).--> This is also called the mucous membrane.
The mucus moistens the air that you inhale.
Under the nasal lining are a lot of small blood vessels that keep the nasal lining warm. This also warms up the inhaled air.