nose / sinus

Question 1

purpose of sinus

Answer 1

1. Decrease the overall weight of the skull

2. Add resonance to our voice

Question 2

4 sinuses

Answer 2

1. Maxillary
   inferior to the frontal sinuses
2. Sphenoid
   posterior aspect of the sphenoid bone
3. Frontal
   located in the frontal bone
4. Ethmoid air cells

Question 3

sinus headache

Answer 3

All different sinuses are lined by mucus-producing cells

Apparatus take the mucus and open it into the nasal cavity
	then digested (recycled) 

If the passage between nasal and sinus is blocked there will still be a production of mucus and it can’t be digested- build up in pressure (sinus headache)