1. BRANCHES OF THE TRIGEMINAL NERVE ALL BRANCHES OF TRIGEMINAL NERVE
ARE LISTED IN
HANDOOUT
'REFERENCE
HANDOUT:
BRANCHES'

2. TRIGEMINAL NERVE – SENSORY INNERVATION TO SKIN OF HEAD – 3 DIVISIONS
V1 – OPHTHALMIC
DIVISION
V2 – MAXILLARY
DIVISON
V3 – MANDIBULAR
Boundary-
Lateral edge
of eye
Boundary
Lateral edge
of mouth

3. TRIGEMINAL NERVE - V - GSA + SVE
V1 - OPHTHALMIC -Sup. Orbital fissure – GSA
V2 - MAXILLARY - Foramen rotundum – GSA
V3 - MANDIBULAR - - Foramen ovale – GSA & SVE V2 V3

4. TRIGEMINAL NERVE - V V1 V1 – OPHTHALMIC -Sup. Orbital fissure – GSA
V2 - MAXILLARY - Foramen rotundum – GSA
V3 – MANDIBULAR - - Foramen ovale – GSA & SVE V2 V3

5. V1 - OPHTHALMIC - GSA Nose
Supraorbital
Notch (Foramen) to face
Ant & Post
Ethmoidal
Foramina to Nasal Cavity
Superior Orbital Fissure
Nose
Recall : Orbit is used as way to reach face, nasal cavity

7. V1 - OPHTHALMIC - ALL GSA V1 1. Frontal N. 3. Lacrimal
Infra-
trochlear N.
Supra-
orbital N.
Supra-
trochlear N.
V1 - OPHTHALMIC -
ALL GSA
1. Frontal N.
a) Supraorbital N.
b) Supratrochlear N.
Forehead, Upper Eyelid
2. Lacrimal N.
Upper eyelid
3. Nasociliary N.
a) Ant. and Post.
Ethmoidal N.
Nasal Cavity
Ethmoid Sinus , Tip of Nose
b) Long Ciliary N.
Sensory to Cornea
c) Infratrochlear N.
Upper eyelid, Nose
3. Lacrimal
Ant. and
Post.
Ethmoidal N.
1. Frontal
2. Nasociliary
Long
Ciliary
Nn. V1

8. TRIGEMINAL – SENSORY BRANCHES TO FACE
LACRIMAL N.
SUPRAORBITAL N.
V2 – MAXILLARY -
to skin of cheek
below orbit -
Zygomaticotemporal Zygomaticofacial
Infraorbital
SUPRATROCHLEAR N.
INFRATROCHLEAR N.
EXTERNAL NASAL N.
V1 – OPHTHALMIC -
to skin above orbit -
a. Lacrimal
b. Supraorbital
c. Supratrochlear
d. Infratrochlear
e. External Nasal Nerve
(branch of Ant. Ethmoidal N.)
V3- MANDIBULAR -
to skin of jaw and face
below angle of mouth -
Auriculotemporal
Buccal
Mental

9. TRIGEMINAL NERVE - V V1 V1 – OPHTHALMIC -Sup. Orbital fissure – GSA
V2 - MAXILLARY - Foramen rotundum – GSA
V3 – MANDIBULAR - - Foramen ovale – GSA & SVE V2 V3

11. V2 - MAXILLARY - GSA V2 - Maxillary enters Pterygopalatine Fossa
NOSE
note:
Pterygomaxillary
fissure is slit
between lateral
pterygoid plate
and maxillary bone;
Pterygopalatine
fossa is space
medial to slit
LATERAL PTERYGOID PLATE
Pterygomaxillary
Fissure
MAXILLARY BONE

12. V2 - MAXILLARY - GSA 1. Meningeal Branch Dura of Middle
Cranial Fossa (not shown)
2. Ganglionic branches
a) Greater Palatine N.
Hard Palate
b) Lesser Palatine N.
Soft Palate
c) Nasopalatine
Nasal Cavity
Ant. part of hard Palate
d) Nasal Branches
Nasal
Branches V2
Naso-
Palatine
Greater
Palatine
Lesser
Palatine
Note: V2 branches from Pterygopalatine Fossa to Nasal Cavity are deep and can only be seen on bisected head

13. V2 - MAXILLARY - GSA Inferior Orbital Fissure Pterygomaxillary Fissure
Post. Sup
Alveolar For.

14. V2 - MAXILLARY - GSA Nose Infraorbital Zygomatic V2 Post Sup. Alveolar
3. Posterior
Superior Alveolar
Maxillary molar teeth
4. Infraorbital
Lower eyelid, nose, upper lip
a) Ant. & Mid Sup
Alveolar
Other Maxillary teeth
5. Zygomatic - br.
a) Zygomaticofacial
b) Zygomaticotemporal
Skin of check, temporal
region V2
Post
Sup. Alveolar

15. TRIGEMINAL – SENSORY BRANCHES TO FACE
V2 – MAXILLARY -
to skin of cheek
below orbit -
a. Zygomatico-
temporal
b. Zygomaticofacial
c. Infraorbital
V1 – OPHTHALMIC -
to skin above orbit -
Lacrimal
Supraorbital
Supratrochlear
Infratrochlear
External Nasal Nerve
ZYGOMATICOTEMPORAL N.
ZYGOMATICOFACIAL N.
NOTE: These are branches of V to face
- Full list of all branches of V is on CD: Reference_handout_list_of_Trigeminal_nerve_branches_2010.doc
INFRAORBITAL N.
V3- MANDIBULAR -
to skin of jaw and face
below angle of mouth -
Auriculotemporal
Buccal
Mental

16. TRIGEMINAL NERVE - V V1 V1 – OPHTHALMIC -Sup. Orbital fissure – GSA
V2 - MAXILLARY - Foramen rotundum – GSA
V3 – MANDIBULAR - Foramen ovale – GSA & SVE V2 V3

18. TRIGEMINAL NERVE SVE - FIRST BRANCHIAL ARCH MUSCLES

19. V3 - MANDIBULAR - GSA + SVE
1. Nervus Spinosus
Dura of Middle Cranial
Fossa (not shown)
2. Motor to
Medial Pterygoid
Tensor Tympani
Tensor Palati (not shown)
3. Ant Division
a. Nerve to Lat. Pterygoids
b. Masseteric N.
c. Deep Temporal
To Temporalis
d. Buccal Branch
Of Trigeminal
Sensory to Cheek
Buccal Branch
Of Trigeminal
Deep
Temporal
N. To Lat
Pterygoid

20. V3 - MANDIBULAR - GSA + SVE
Post Division
a. Auriculotemporal
Skin of Temple, Scalp
External ear, TMJ
b. Lingual
Touch to Ant 2/3
Tongue
c. Inf. Alveolar N.
Sens to Lower Teeth
i) Mental N.
Skin Lower Jaw
ii) Nerve to Mylohyoid -
Motor to Mylohyoid
& Ant. Belly of Digastric
Auriculo-
Temporal
Lingual
Inferior
Alveolar
N. TO
MYLOHYOID
MENTAL N.

21. TRIGEMINAL – SENSORY BRANCHES TO FACE
V2 – MAXILLARY -
to skin of cheek
below orbit -
Zygomaticotemporal Zygomaticofacial
Infraorbital
V1 – OPHTHALMIC -
to skin above orbit -
Lacrimal
Supraorbital
Supratrochlear
Infratrochlear
External Nasal Nerve
AURICULOTEMPORAL N.
BUCCAL N.
V3- MANDIBULAR -
to skin of jaw and face
below angle of mouth -
a. Auriculotemporal
b. Buccal
c. Mental
MENTAL N.