Maxillary Nerve

Question 1

Origin

Answer 1

Purely sensory from trigeminal ganglion.
Intermediate in size and position in between ophthalmic and mandibular nerves.

Question 2

Course in cranial cavity

Answer 2

1. Passes forward in lateral of cavernous sinus
2. Leaves middle fossa through foramen rotundum

Question 3

Course in pterygopalatine fossa

Answer 3

3. Reach pterygopalatine fossa

Question 4

Course in orbit

Answer 4

4. Pass through inferior orbital fissure (infra orbital nerve new name), infra orbital groove, infra orbital canal

Question 5

Course in face

Answer 5

5. Reach face through infra orbital foramen
6. Ends by dividing into palpebral, nasal, and labial branches

Question 6

Branches in cranial cavity

Answer 6

1. Meningeal nerve

Question 7

Branches in pterygopalatine fossa

Answer 7

1. Two ganglionic nerves
2. Zygomatic nerve
3. Posterior superior alveolar nerve

Question 8

In orbit branches

Answer 8

1. Middle superior alveolar nerve
2. Anterior superior alveolar nerve

Question 9

Branches in face

Answer 9

1. Palpebral nerve
2. Nasal nerve
3. Labial nerve

Question 10

Meningeal nerve supply

Answer 10

Dura of middle cranial fossa

Question 11

Two ganglionic nerves course

Answer 11

Suspend sphenopalatine ganglion to maxillary nerve

Question 12

Zygomatic nerve course

Answer 12

Enters orbit through inferior orbital fissure

Question 13

Zygomatic nerve branches

Answer 13

1. Zygomaticotemporal nerve
2. Zygomaticofacial nerve

Question 14

Zygomaticotemporal nerve supply

Answer 14

Skin of anterior part of temple

Question 15

Zygomaticofascial nerve supply

Answer 15

Skin on body of zygomatic bone

Question 16

Posterior superior alveolar nerve course

Answer 16

1. Leaves fossa via pterygomaxillary fissure
2. Pierces back of maxilla
3. Descends on maxilla

Question 17

Posterior superior alveolar nerve supply

Answer 17

1. Upper molars
2. Gum
3. Maxillary sinus

Question 18

Middle superior alveolar nerve course

Answer 18

1. Arises from infraorbital nerve in infraorbital groove
2. Descends in lateral wall of maxillary sinus

Question 19

Middle superior alveolar nerve supply

Answer 19

1. Upper premolars
2. Gum

Question 20

Anterior superior alveolar nerve course

Answer 20

1. Arises from infraorbital nerve in infraorbital canal
2. Descends in anterior wall of maxillary sinus

Question 21

Anterior superior alveloar nerve supply

Answer 21

1. Upper incisors
2. Canine
3. Gum

Question 22

Palpebral nerve supply

Answer 22

Skin of lower eyelid

Question 23

Nasal nerve supply

Answer 23

Skin of nose side

Question 24

Labial nerve supply

Answer 24

Skin of upper lip