Trigeminal Nerve Maxillary Division

Question 1

Is the maxillary division motor or sensory?

Answer 1

Sensory

Question 2

Where does the V2 exit the skull?

Answer 2

Foramen rotundum in the greater wing of sphenoid

Question 3

After leaving the skull, where does V2 run?

Answer 3

It enters the pterygopalatine fossa and gives off several branches, then into the orbit via the inferior orbital fissure.

Question 4

What is V2 called once in the orbit?

Answer 4

The infraorbital nerve

Question 5

Describe the path V2 takes .

Answer 5

Leaves cave in temporal bone
Runs in base of cavernous sinus
Into skull via foramen rotundum 
Into Pterygopalatine fossa 
Orbit via inferior orbital fissure
Crosses infraorbital groove
Enters infraorbital canal
Exits maxilla via IO foramen

Question 6

What branches are given off in the IOC?

Answer 6

MSD

ASD

Question 7

What are the terminal branches?

Answer 7

Palpebral
Nasal
Labial

Question 8

What branches are given off in the pterygopalatine fossa?

Answer 8

Posterior superior dental
Zygomatic 
Greater and lesser palatine 
Long sphenopalatine
Pharyngeal

Question 9

What does PSD nerve supply?

Answer 9

Pulps of molars
Perioligament
Mucous membrane of antrum

Question 10

What does the zygomatic branch supply?

Answer 10

Sensation to skin of temple and cheek

Question 11

What are the branches of the zygomatic nerve?

Answer 11

Zygomaticofacial

Zygomaticotemporal

Question 12

Which nerves are given off via the pterygopalatine ganglion?

Answer 12

Greater palatine
Lesser palatine
Long sphenopalatine

Question 13

Describe the path the long sphenopalatine nerve takes:

Answer 13

Runs forwards on the vomer and exits via the incisive foramen on the anterior of the hard palate

Question 14

Which nerves supply pulps of maxillary teeth?

Answer 14

PSD
MSD
ASD

Question 15

Which nerves supply pulps of maxillary teeth?

Answer 15

PSD
MSD
ASD

Question 16

Which nerves supply palatal surfaces of maxillary teeth?

Answer 16

Greater palatine

Long sphenopalatine

Question 17

Where does the PSD nerve supply?

Answer 17

Buccal and pulp of upper 6, 7, 8

Question 18

Where does the MSD nerve supply?

Answer 18

Buccal and pulp of upper 4, 5, 6

Question 19

Where does the ASD nerve supply?

Answer 19

Buccal and pulp of upper 1, 2, 3

Question 20

Where does the greater palatine nerve supply?

Answer 20

Palatal of upper 4-8

Question 21

Where does the long sphenopalatine nerve supply?

Answer 21

Palatal of upper 1-3