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Group 2

Group 2. Fatin , Aishah , Zafirah , Laila, Masyitah , Amalina , Aimi. Bones of the Skull. Mandible 1 Vomer 2 Inferior nasal conchae 2 Lacrimal bones 2 Maxillae 2 Nasal bones Palatine bones 2 Zygomatic bones. 1 Ethmoid bone Frontal bone 1 Occipital bone

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Group 2

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  1. Group 2 Fatin, Aishah, Zafirah, Laila, Masyitah, Amalina, Aimi

  2. Bones of the Skull

  3. Mandible 1 Vomer 2 Inferior nasal conchae 2 Lacrimal bones 2 Maxillae 2 Nasal bones Palatine bones 2 Zygomatic bones 1Ethmoid bone Frontal bone 1 Occipital bone Parietal bones Sphenoid bone Temporal bones

  4. FACIAL BONES

  5. CRANIAL BONES

  6. ADDITIONAL SKULL FEATURES • Major sutures • Paranasal sinuses • Hyoid bone

  7. Major Sutures

  8. Functions

  9. Maxilla & Mandible

  10. Maxilla • Forms the majority of the skeleton of the face and the upper jaw • Contains the maxillary sinus • Articulates with the opposite maxilla and the frontal, sphenoid, nasal, vomer, and ethmoidbones; inferior nasal concha, palatine, lacrimal, and zygomatic bones; and septal and nasal cartilages

  11. Mandible • Forms the lower jaw • Described as horseshoe shaped • All muscles of mastication attach to the mandible • Consists of body of mandible, ramus, coronoid process, condylar process, alveolar process

  12. Lacrimal & Nasal Cavity

  13. Lacrimal Bone • Small and rectangular in shape • Very thin and fragile • Forms a small portion of medial wall of the orbit • Articulates with frontal process of the maxilla, orbital plate of the ethmoid bone, frontal bone and inferior nasal concha • The region that articulates with the frontal process of the maxilla forms the lacrimal fossa →the location of the lacrimal sac • The inferior part of the lacrimal forms a small portion of the lateral wall of the nasal cavity

  14. Nasal Bone

  15. Foramens of the Base of the Skull

  16. What is foramen? • A foramen (pl. foramina) is an opening. • Foramina allow muscles, nerves, arteries, veins, or other structures to connect one part of the body with another.

  17. Superior view of the cranial base

  18. Inferior view of the cranial base

  19. Thank you

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