Local Anesthesia pt. 5

Question 1

— nerve is the largest cranial nerve

Answer 1

Trigeminal
 Small motor
 Large sensory root

Question 2

Motor
 Originate:

Answer 2

 motor nucleus in pons and medulla oblongata

Question 3

where it exits cranium

Answer 3

Foramen Ovale

Question 4

Trigeminal n
 Innervate
(5)

Answer 4

 Masticatory muscle( masseter, temporalis, med/lat pterygoid)
 Mylohyoid
 Anterior belly of digastric
 Tensor tympani
 Tensor veli palatini

Question 5

Sensory Root
Originate:

Answer 5

 Petrous portion of
Temporal bone

Question 6

Sensory Root
3 divisions

Answer 6

 Ophthalmic V1:
 Superior Orbital Fissure
 Maxillary 2:
 Foramen Rotundum
 Mandibular V3:
 Foramen Ovale

Question 7

Opthalmic Division
 Exclusively

Answer 7

sensory

Question 8

Opthalmic Division
Supply:

Answer 8

 Eyeball, conjunctiva, lacrimal gland,
Mucous membrane of nose and
paranasal sinuses, and skin of
forehead, eyelid, and nose

Question 9

Opthalmic Division
Major branches
(3)

Answer 9

 Nasociliary nerve
 Frontal Nerve
 Lacrimal Nerve

Question 10

Maxillary Division V2
 Purely

Answer 10

Sensory

Question 11

Maxillary Division V2
 Origins
(4)

Answer 11

 Foramen Rotundum
 Pterygopalatine Fossa
 Inferior orbital fissure/canal
 Infraorbital foramen

Question 12

Branches for V2 (Maxillary)
(4)

Answer 12

 Middle Meningeal Nerve
 Pterygopalatine fossa
 Infraorbital canal
 Face (after exiting infrabortibal foramen)

Question 13

 Pterygopalatine fossa
(3)

Answer 13

 Zygomatic nerve
 Pterygopalatine nerve
 Posterior superior alveolar nerve (PSA)

Question 14

Pterygopalatine nerve (4)

Answer 14

 Orbital
 Nasal (nasopalatine)
 Palatine (greater palatine nerve)
 Pharyngeal

Question 15

Infraorbital canal
(2)

Answer 15

 Middle superior alveolar (MSA)
 Anterior superior alveolar (ASA)

Question 16

Facts about V2
MSA nerve is to be present in – % of time

Answer 16

28

Question 17

ASA provides pulpal innervation to
(3)

Answer 17

 Central and lateral incisors
 Canine
 PDL, buccal bone, mucous membrane of these teeth

Question 18

3 major types of local
anesthesia
(3)

Answer 18

Local Infiltration
Field Block
Nerve Block