1. BONES OF NASAL CAVITY
Masyitah Mustaffa

2. Overview: Bones of the skull

3. Nasal Septum
Septal Cartilage
Ethmoid bone
Vomer

4. Ethmoid Bone - Perpendicular plate
A flat plate that descend from cribriform plate to form part of nasal septum
Articulate with vomer inferiorly
Ethmoid Bone - Perpendicular plate

5. Articulate with perpendicular plate of ethmoid, maxilla, palatine and sphenoid bone and septal cartilage
Posterior border no articulation with other bone
Vomer

6. Base of Nasal Cavity Maxilla – Palatine Process of Maxilla
Palatine Bone – Horizontal Plate of Palatal Bone

7. Extend medially to form the majority of hard palate
Articulate with palatine process of opposite side and horizontal plate of palatine bone
Present of incisive foramen
Maxilla - Palatine Process

8. Form posterior portion of hard palate
Nasal cavity superiorly
On medial part, form by both horizontal plate is posterior nasal spine
Has greater palatine foramina
Palatine bone – Horizontal Plate

9. Posterior Border of Nasal Cavity
Sphenoid Bone - Body
The center of sphenoid bone
Anterior portion form part of nasal cavity
Contain sphenoid paranasal sinuses

11. Superior Border of Nasal Cavity
Nasal Bone
Frontal Bone
Ethmoid Bone

12. Nasal Bone
Inferior portion form superior margin of nasal aperture
Inferior portion of nasal bone attach with lateral nasal cartilage and septal cartilage

13. Frontal Bone – Nasal Portion
Articulate with nasal bone and frontal process of maxilla to form root of nose

14. Ethmoid Bone - Cribriform Plate
A horizontal bone that form superior surface of ethmoid
Contain numerious foramina for olfactory nerves

15. Lateral Border of Nasal Cavity
Ethmoid Bone
Lacrimal Bone
Inferior Nasal Concha
Palatine Plate

19. Ethmoid Bone – ethmoid labyrinth
Largest part of ethmoid bone
Descend inferiorly from the cribriform plate
Ethmoid paranasal sinuses located within
Form 2 major structure within nasal cavity
Superior nasal concha
Middle nasal concha

20. Lacrimal Bone
Small and rectangular in shape
Inferior part of lacrimal form small portion of lateral wall of nasal cavity

21. Inferior Nasal Concha
A curved bone that form part of lateral wall of nasal cavity
Articulate with maxilla and perpendicular plate of palatine, lacrimal, and ethmoid bone

22. Palatine Bone – Perpendicular plate
Shape of vertical rectangle
Superior border is a notch articulate with sphenoid bone, form sphenopalatine foramen
Form part of lateral wall of nasal cavity

23. Reference
Netter’s Head and Neck Anatomy for Dentistry