Trigeminal Nerve

Contents

Introduction

Nuclear column

Trigeminal ganglion

Divisions of the nerve

Clinical considerations

References

Introduction

Nuclear columns

General

somatic

afferent

column

• Spinal nucleus of V nerve

• Superior sensory nucleus of V nerve

• Mesencephalic nucleus

Branchial

efferent

column

• Motor nuclei

Trigeminal ganglion

Divisions of Trigeminal Nerve

Ophthalmic nerve

Maxillary nerve

Mandibular nerve

Ophthalmic nerve

Divisions of ophthalmic nerve

Lacrimal nerve

Nasociliary nerve

Frontal nerve

Lacrimal nerve

Frontal nerve

supraorbital nerve

Supratrochlear nerve

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 cavityTerminal branches on the face

Autonomic ganglion associated

The ciliary ganglion

Maxillary nerve

Divisions of maxillary nerve

Maxillary nerve

In middle cranial fossa

Terminal branches

In infrorbital

groove and canal

In pterygop-

alatine fossa

Branches In middle cranial fossa

Branches in pterygopalatine fossa

Zygomatic nerve

Pterygopalatine nerve

Posterior superior

alveolar nerve

Autonomic ganglion associated

The sphenopalatine ganglion

Branches in infraorbital groove and canal

Middle superio

r alveolar nerve

Anterior

superior

alveolar nerve

Terminal branches on face

Inferior palpebral branches

Lateral nasal branches

Superior labial

branches

Mandibular nerve

Branches from undivided nerve

Nervus spinosus

Nerve to internal ptrygoid muscle

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

Anterior division

Posterior division

The auriculotemporal nerve

Lingual nerve

Inferior alveolar nerve

Autonomic ganglion associated

Submandibular ganglion

Otic ganglion

Clinical considerations

Clinical examination

Sensory nerve examination

Motor nerve examination

Trigeminal reflexes

Applied anatomy

Trigeminal

neuralgia

Management

Differential diagnosisDiagnosis

Clinical features

Etiology

Postherpetic neuralgia

Trigeminal nerve injuries

Sturge -weber

syndrome

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.

Thank you