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Question 1

Opthalmic Nerve exits cranium via..

Answer 1

Superior orbital fissure.

Question 2

Ophthalmic (V1) innervates..

Answer 2

Upper third of face, eyeball, superior eyelid, nose, roof of maxillary sinus, and scalp.

Question 3

Maxillary (V2) exits cranium via..

Answer 3

Foramen Rotundum.

Note: exits into the pterygopalatine space.

Question 4

Maxillary (V2) branches..

Answer 4

1) pterygopalatine
2) posterior superior alveolar
3) infraorbital
4) zygomatic

Question 5

Descending palatine/Greater Palatine provides..

Answer 5

Sensation to the mucosa of the posterior two-thirds of the hard palate and lingual gingiva of the molars and premolars.

Question 6

Nasopalatine provides..

Answer 6

Sensation to the mucosa of the anterior two-thirds of the hard palate and lingual gingiva of the anterior teeth.

Question 7

Middle and Posterior/Lesser Palatine provides..

Answer 7

Sensation to the soft palate and the tonsils.

Question 8

Posterior Superior Alveolar provides..

Answer 8

Sensation for the maxillary molars: pulps, ligaments, alveolar bone, and facial gingiva.

Except: mesiobuccal root of first maxillary molar.

Question 9

Middle Superior Alveolar provides..

Answer 9

Sensation to the premolars: teeth/teeth pulp, periodontal ligaments, alveolar bone, and facial gingiva.

Note: Also includes mesiobuccal root of maxillary first molar.

Question 10

Anterior Superior Alveolar provides..

Answer 10

Sensation to the anterior maxillary teeth, facial gingiva, part of the maxillary sinus, etc.

Question 11

Infraorbital provides..

Answer 11

Sensation to the upper lip and nose.

Question 12

Zygomatic branch provides..

Answer 12

Skin of temporal and orbit region.

Question 13

Mandibular (V3) branches..

Answer 13

1) Auriculotemporal
2) Buccal
3) Lingual
4) Inferior Alveolar

Question 14

Infiltration of a nerve signifies..

Answer 14

Apply anesthesia to surface of bone.

Note: bone must have enough porosity to take.

Question 15

A nerve block involves..

Answer 15

Applying anesthesia to a nerve before it enters its respective foramen, due to the density of the bone.

Question 16

The fornix is..

Answer 16

The deepest part of the vestibule.

Question 17

Buccal nerve innervates..

Answer 17

Buccal gingiva of molars and premolars, buccal mucosa, skin of cheeks up to corner of mouth.

Question 18

Lingual nerve innervates..

Answer 18

General sensation to the anterior two-thirds of the tongue, floor of the mouth, and lingual gingiva in the mandible.

Question 19

The two terminal branches of inferior alveolar are..

Answer 19

Mental branch and incisive branch.

Question 20

Mental branch of inferior alveolar innervates..

Answer 20

Lower lip and anterior facial gingiva.

Question 21

Incisive branch of inferior alveolar innervates..

Answer 21

The pulps of the anterior mandibular teeth.

Question 22

Mylohyoid nerve..

A) origin
B) innervates..

Answer 22

A) branches from inferior alveolar before inferior alveolar enters the mandibular foramen.

B) it innervates mylohyoid m. and the anterior belly of the digastric m.

Question 23

Inferior alveolar nerve innervates..

Answer 23

Mandibular pulps of premolars and molars, periodontal ligaments, and alveolar processes.

Question 24

Motor branches of mandibular (V3) nerve innervate..

Answer 24

Muscles of mastication (masseter, temporalis, medial and lateral pterygoids).

Note: it’ll be important next semester, but think MoM and the two tiny tensors.. MoM (muscles of mastication) and tensors (other muscles)

Question 25

Chorda tympani joins.. ..to innervate the anterior two-thirds of the tongue.

Answer 25

Lingual nerve (V3).

Question 26

Facial nerve (VII) innervates..

Answer 26

Muscles of facial expression, posterior belly of digastric, stylohyoid, and platysma.

Question 27

Secretory fibers from facial nerve (VII) innervate..

Answer 27

Submandibular and sublingual gland.

Question 28

Glossopharyngeal nerve (IX) innervates..

Answer 28

Posterior one-third of tongue for general sensation and taste, pharynx, and tonsils.

Secretory fibers to parotid gland.

Efferent fibers to muscles of the pharynx.

Question 29

Hypoglossal Nerve (XII) innervates..

Answer 29

Muscles the tongue.

Question 30

Trigeminal Nerve Divisions and Modalities..

Answer 30

Opthalmic (V1) - sensory
Maxillary (V2) - sensory
Mandibular (v3) - both sensory and motor