1. Paul Cezanne, Still Life with Skull
Facial skeleton, orbit
Paul Cezanne, Still Life with Skull
Mark Kozsurek, M.D., Ph.D.
assistant professor
EM I., 26/09/2017

2. External acustic meatus
Supraorbital margin
NEUROCRANIUM
FACIAL SKELETON
External acustic meatus

3. + infratemporal fossa
pterygopalatine fossa

4. also contribute to the neurocranium!
Paired:
zygomatic
maxilla
nasal
palatine
lacrimal
inferior nasal concha
Unpaired:
sphenoid
ethmoid
vomer
also contribute to the neurocranium!

5. Zygomatic bone temporal fossa Surfaces: - orbital - lateral - temporal
Processes: - frontal
- maxillary
- temporal
Zygomatic canal: a Y-shaped channel with zygomaticoorbital, zygomaticfacial and zygomaticotemporal foramina

6. Walls of the orbit: on the blackboard

7. Walls of the orbit

8. medial wall
lateral wall
inferior wall

9. Superior: Medial: Lateral: Inferior: orbital part of the frontal
lesser wing of the sphenoid
Medial:
frontal process of the maxilla
lacrimal
orbital lamina of the ethmoid
body of the sphenoid
Lateral:
orbital surface of the zygomatic
orbital surface of the greater wing of the sphenoid
Inferior:
orbital surface of the maxilla
orbital process of the palatine

10. Connections of the orbit
- Knowledgebase

11. 1. aditus orbitae
2. frontal notch
3 supraorbital foramen
4. zygomaticoorbital, zygomaticofacial and zygomaticotemporal foramina (zygomatic canal)
5. infraorbital sulcus, canal and foramen
6. nasolacrimal canal
7. ant. ethmoidal foramen and canal
8. post. ethmoidal foramen and canal
9. optic canal
10. sup. orbital fissure
11. inf. orbital fissure 3 2 8 9 7 1 10 6 11 4 5

12. 7. ant. ethmoidal foramen and canal
8. post. ethmoidal foramen and canal
9. optic canal
10. superior orbital fissure 7 8 9 10

13. Pterygopalatine fossa (deep inside)
11. inferior orbital fissure 11
Pterygopalatine fossa (deep inside)
Infratemporal fossa

14. Structures within the orbit related to the lacrimal apparatus
trochlear pit/spine
fossa for lacrimal gland
fossa for lacrimal sac

15. Variations of the supraorbital margin

16. nose nose nose nose supraorbital notch and frontal notch
supraorbital notch only
nose
nose
supraorbital notch and frontal foramen
supraorbital foramen and frontal foramen
nose

17. coronal section through the orbit

18. "Blow-out" fracture of the orbit
The eye and socket is hit by a fast moving object like a ball or fist. Usually the inferior and medial walls are involved. This can cause the eye to look sunken in or even cause double vision.

19. Thank you for your attention!