Nerve supply to the maxilla

Question 1

The nerves supplying the teeth + gums

Answer 1

are the alveolar + palatine branches on the maxillary nerve

Question 2

1. Anterior superior alveolar nerve

Answer 2

supplies sensation incisors + canines + labial gum of these teeth (1,2,3) it also supplies sensation from soft tissues of upper lip + around nostrils

Question 3

2. Middle superior alveolar nerve

Answer 3

supplies sensation the premolars, anterior part of the first molar + buccal gum of these teeth (4,5, part of 6)

Question 4

3. Posterior superior alveolar nerve

Answer 4

supplies sensation the remainder of the 1st, 2nd + 3rd molars + buccal gum of these teeth (rest of 6, 7, 8)

Question 5

Anterior + middle superior alveolar nerves

Answer 5

branch off from the maxillary nerve in the floor of the orbit, they pass down inside the maxilla, in the walls of the maxillary sinus to reach the teeth

Question 6

4. (palatal nerves) Naso-palatine (formerly long sphenopalatine) nerve

Answer 6

supplies palatal gum of incisors + part of canines - it passes through the floor of nasal cavity to reach surface of palate through the incisive foramen behind the central incisors

Question 7

5. (palatal nerves) Greater palatine nerve

Answer 7

supplies palatal gum of the canine, premolars + molars
it passes through the back of the maxilla + reaches surface of the hard palate through the greater palatine foramen opposite the third molar.

Question 8

The maxillary nerve

Answer 8

emerges from the base of the brain, leaves the skull through the Foramen rotundum + passes through the floor of eye socket (orbit).