This document discusses several anatomical structures in the head and neck region. It describes the temporal fossa, infratemporal fossa, and pterygopalatine fossa. The temporal fossa contains bones and the infratemporal fossa contains nerves, muscles, and vessels. The pterygopalatine fossa communicates with several areas and contains the maxillary nerve distribution. It also describes the bony framework of the pterygopalatine fossa. Next, it discusses the nasal fossae and structures passing through them. Finally, it describes the orbit as a pyramid shape with openings and passages for nerves and vessels.

2. Fossa temporal e infratemporal

3. Fossa temporal

4. Fossa temporal

5. Fossa temporal

6. Fossa infratemporal
Major contents of the infratemporal fossa : sphenomandibular ligament, medial and
lateral pterygoid muscles, maxillary artery, the mandibular nerve [V3], branches of the
facial nerve [VII] and the glossopharyngeal nerve [IX], and the pterygoid plexus of veins
Roof
walls

7. Fossa infratemporal

8. Fossa infratemporal

9. Fossa pterigopalatina pterygopalatine fossa
communicates via fissures and
foramina in its walls with the:
middle cranial fossa;
infratemporal fossa; floor of
the orbit; lateral wall of the
nasal cavity; oropharynx; and
roof of the oral cavity
pterygopalatine fossa is a major site of
distribution for the maxillary nerve
All the upper teeth receive their innervation and
blood supply from the maxillary nerve [V2] and the
terminal part of the maxillary artery, respectively,
that pass through the pterygopalatine fossa.

10. Fossa pterigopalatina
Skeletal framework The walls of the pterygopalatine fossa are formed by parts of the
palatine, maxilla, and sphenoid bones:
the anterior wall is formed by the posterior surface of the maxilla;
the medial wall is formed by the lateral surface of the palatine bone;
the posterior wall and roof are formed by parts of the sphenoid bone

11. Fossa pterigopalatina

12. Fossa pterigopalatina

13. Fossas nasais

14. Fossas nasais

15. Fossas nasais

16. Fossas nasais

17. Fossas nasais

18. Fossas nasais

19. Fossas nasais

20. Fossas nasais

21. Fossas nasais

22. Fossas nasais
(Nasopalatine nerve)

23. Órbita
bony orbit: shape of a pyramid, with its wide base opening anteriorly onto
the face, and its apex extending in a posteromedial direction

24. Órbita
Passing through the superior orbital fissure are the superior and inferior branches of the
oculomotor nerve [III], the trochlear nerve [IV], the abducent nerve [VI], the lacrimal, frontal,
and nasociliary branches of the ophthalmic nerve [V1], and the superior ophthalmic vein

25. Órbita
Passing through the optic canal are the optic
nerve and the ophthalmic artery

26. Órbita

27. Órbita

28. Órbita

29. Órbita
Inferior orbital fissure allows communication between: the orbit and the pterygopalatine fossa
posteriorly; the orbit and the infratemporal fossa in the middle; and the orbit and the temporal
fossa posterolaterally. Passing through the inferior orbital fissure are the maxillary nerve [V2]
and its zygomatic branch, the infra-orbital vessels, and a vein communicating with the pterygoid
plexus of veins.

30. Órbita

31. Órbita