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BONES OF NASAL CAVITY Masyitah Mustaffa.

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Presentation on theme: "BONES OF NASAL CAVITY Masyitah Mustaffa."— Presentation transcript:

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

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