The document summarizes the trigeminal nerve, including its nuclear columns, trigeminal ganglion, three divisions of the nerve, and clinical considerations. The trigeminal nerve has three divisions - the ophthalmic, maxillary, and mandibular nerves. It discusses the branches and distributions of each division. Clinically, examination of the trigeminal nerve involves sensory and motor testing as well as trigeminal reflexes. Common conditions involving the trigeminal nerve like trigeminal neuralgia and postherpetic neuralgia are also mentioned.

1. Trigeminal Nerve

2. Contents
 Introduction
 Nuclear column
 Trigeminal ganglion
 Divisions of the nerve
 Clinical considerations
 References

3. Introduction

4. Nuclear columns
General somatic
afferent column
• Spinal nucleus of V
nerve
• Superior sensory nucleus
of V nerve
• Mesencephalic nucleus
Branchial
efferent column
• Motor nuclei

5. Trigeminal ganglion

6. Divisions of Trigeminal Nerve
 Ophthalmic nerve
 Maxillary nerve
 Mandibular nerve

7. Ophthalmic nerve

8. Divisions of ophthalmic nerve
Lacrimal
nerve
Nasociliary
nerve
Frontal
nerve

9. Lacrimal nerve

10. Frontal nerve
supraorbital
nerve
Supratrochlear
nerve

11. Nasociliary nerve
Branches in the orbit
1) Long root of
ciliary gang.
2) Long ciliary n.
3) Post Ethmoid
n.
4) Ant. Ethmoid
n.
Branches in the nasal cavity
Terminal branches
on the face

12. Autonomic ganglion associated
The ciliary ganglion

13. Maxillary nerve

14. Divisions of maxillary nerve
In middle
cranial
fossa
Maxillary
nerve
Terminal
branches
In infrorbital
groove and
canal
In
pterygop-alatine
fossa

15. Branches In middle cranial fossa

16. Branches in pterygopalatine fossa
Zygomatic
nerve
Pterygopalatine
nerve
Posterior
superior alveolar
nerve

17. Autonomic ganglion associated
The sphenopalatine ganglion

18. Branches in infraorbital groove and
canal
Middle
superior
alveolar
nerve
Anterior
superior
alveolar
nerve

19. Terminal branches on face
Inferior palpebral
branches
Lateral nasal
branches
Superior labial
branches

20. Mandibular nerve

21. Branches from undivided nerve
Nervus
spinosus
Nerve to
internal
ptrygoid
muscle

22. Branches from divided nerve
Anterior division
• Branch to external
pterygoid muscle
• Branch to masseter
muscle
• Branch to temporal
muscle
• Buccal nerve
Posterior division
• Auriculotemporal
nerve
• Lingual nerve
• Inferior alveolar
nerve

23. Anterior division

24. Posterior division
The auriculotemporal
nerve

25. Lingual nerve

26. Inferior alveolar nerve

27. Autonomic ganglion associated
 Submandibular ganglion
 Otic ganglion

28. Clinical considerations

29. Clinical examination
Sensory nerve examination

30. Motor nerve examination

31. Trigeminal reflexes

32. Applied anatomy
Trigeminal
neuralgia
Management
Differential
diagnosis
Clinical
features
Etiology
Diagnosis

33. Postherpetic
neuralgia

34. Trigeminal
nerve
injuries

35. Sturge -weber
syndrome

36. References
 B D chaurasia’s human anatomy, volume III, 6th edition.
 Monheims local anaesthesia and pain control in dental practice, 7th
edition.
 Shafer’s textbook of oral pathology,6th edition.
 Burket’s oral medicine,11th edition.
 Harrisons’s principles of internal medicine,17th edition.

37. Thank you