Nose and Nasal Cavity

Question 1

what bones and cartilage does the nasal cavity consist of?

Answer 1

Bones:
Nasal
Frontal process of maxillae
Nasal part of frontal bone and nasal spine

Cartilage:
2 lateral cartilage
2 alar cartilage
septal cartilage

Question 2

what are the function of the nasal septum and its structure?

Answer 2

The function is to divide the nasal cavity into 2 parts.

Structure Consists of 3 parts:

Perpendicular plate of the ethmoid
Vomer - thin flat bone found posteriorly inferiorly
Septal cartilage, continuous inferiorly and anteriorly with the bony septum

Question 3

what is the first section of the nasal cavity called?

Answer 3

Vestibules, which are lined with skin and stiff hair.

the mucous membrane is continuous with the line of all the chambers

Question 4

what are the functions of the concha

Answer 4

the superior and middle conchea are considered part of the ethmoid bone, while the inferior is their own two bone.

Superior Concha:
Superior meatus
Opening for posterior ethmoidal sinuses

Middle Concha
Middle meatus 
frontal sinus
Maxillary sinuses
Anterior  cells (ethmoid)
Middle cells (ethmoid)

Inferior Concha
Nasolacrimal duct ( drains tears from lacrimal sac)

Question 5

what are the Paranasal sinuses and how many are there?

Answer 5

They are air-filled cavities lined with mucous membrane.

2 Frontal sinus
2 Sphenoidal
2 Maxillary
Multiply Ethmoid