The mucus in your nose helps block out germs and helps keep your nose clean. The mucus is located in the vestibule. The skin inside your nose is very thin and breaks easily. You can catch many diseases through your nose. The nose is very important to the body that's why you need to take care of it.
Some medicines have to be injected through the nose.
The nose bone is one of the most fragile bones in the body. The main nerve in your nose is called the ethmoidal nerve. When you have nasal conjestion it usually takes place in the frontal sinus. When air is inhaled it moves through the nasal passages and to the lungs in one movement. When air is exhaled most of it is discharged at once, but some remains in the nose until another breath is taken.