Anatomy Review

Question 1

the maxillary division is ___________ (sensory, motor, mixed)

Answer 1

sensory: pain, touch, temp

Question 2

what two bones make up the palate?

Answer 2

maxilla & palatine

Question 3

T/F the max teeth are located in both the maxilla and the palatine

Answer 3

False! all max teeth are w/n the maxilla

Question 4

because the maxilla is __________ the anesthetic freely difuses

Answer 4

porous

Question 5

the greater palatine foramen has what kind of angle and shape?

Answer 5

forward and oval

Question 6

what are the compartments of the maxillary division?

Answer 6

middle cranial fossa
pterygopalatine fossa
infraorbital canal
face

Question 7

what fossa is the PSA located in?

Answer 7

the pterygopalatine fossa

Question 8

what fossa is the MSA/ASA located in?

Answer 8

infraorbital canal

Question 9

where does V1 exit the cranial base?

Answer 9

superior orbital fissure

Question 10

where does V2 exit the cranial base?

Answer 10

foramen rotundum

Question 11

where does V3 exit the cranial base?

Answer 11

foramen ovale

Question 12

what are the major branches assoc. withe the pterygopalatine ganglion that are useful for dentistry

Answer 12

nasopalatine
greater palatine

Question 13

T/F the greater palatine n. is assoc with soft tissue innervation

Answer 13

True

Question 14

what’s the area that’ll get numb if you inject the greater palatine nerve?

Answer 14

palatal gingiva from premolars posteriorly
mucosa of hard palate in area

Question 15

how should you inject the greater palatine n?

Answer 15

angle forward

Question 16

T/F there is only one nasopalatine n. that exits the incisive foramen

Answer 16

False! 2 nasopalatine nerves

Question 17

T/F when getting the nasopalatine n. numb, you’ll always get both numb and not just one side

Answer 17

true

Question 18

what’s the best way to avoid giving the pt a hematoma when giving the PSA block?

Answer 18

use a short needle

Question 19

what’s the concern when giving the PSA?

Answer 19

giving a hematoma by hitting the pterygoid plexus

Question 20

________% of individuals have the MSA?

Answer 20

30%

Question 21

what will get numb if you hit the MSA in pt’s that have it?

Answer 21

-mesiobuccal root of the 1st max molar (possibly)
-buccal gingiva and mucosa
-max sinus

Question 22

what will get numb with the ASA

Answer 22

-canine and incisors
-facial gingiva and mucosa
-max sinus/nasal cavity

Question 23

what’s another name for the infraorbital nerve block?

Answer 23

ASA nerve block

Question 24

what’s an exterior landmark that you can use to hit the infraorbital nerve block?

Answer 24

the pupil will line up with foramen

Question 25

with an infraorbital nerve block what will also get numb in addition to the structures that get numb with the ASA/MSA block?

Answer 25

lower eyelid lateral side of nose upper lip

Question 26

with a maxillary division block what nerves (assoc with dentistry) will be blocked

Answer 26

-greater palatine (lesser as well, but not assoc with dentistry) -nasopalatine -PSA -MSA (if present) -ASA

Question 27

what's another name for the buccal n.?

Answer 27

long buccal

Question 28

what kind of nerve is the buccal nerve? (sensory, motor, mixed) and where does it go to?

Answer 28

sensory -sensation to gingiva along buccal shelf -retromolar trigone -all along gingiva of mand molars

Question 29

V3 branch is __________ (sensory, motor, mixed)

Answer 29

mixed

Question 30

what is attached to the lingula?

Answer 30

sphenomandibular lig

Question 31

T/F local infiltration is better on the mand vs. the max

Answer 31

False. the cortical plates are thicker so locals are harder

Question 32

what's the importance of the mylohyoid line?

Answer 32

separates mouth mylohyoid muscle attaches here

Question 33

what's the importance of the lingual tuberosity

Answer 33

lingual nerve lies in contact with it and it can be compressed with dental work (e.g. exts)

Question 34

what are the 8 muscles that V3 gives motor function to?

Answer 34

muscles of mastication: -temoporalis -masseter -medial pterygoid -lateral pterygoid Mylohyoid ant. belly of digastric tensor tympani tensor veli palatini

Question 35

all ant./post. divisions of the mandible are part of what fossa?

Answer 35

infratemporal fossa

Question 36

what is the auriculotemporal nerve asssoc with regarding dentistry?

Answer 36

the nerve of the TMJ

Question 37

what division does the buccal n. belong to?

Answer 37

the ant. division

Question 38

what division does the lingual, IA, incisive, & mental nn's belong to?

Answer 38

post. division

Question 39

T/F the incisive n. goes to the soft tissue while the mental n. goes to the teeth

Answer 39

false! mental = soft tissue incisive = teeth

Question 40

what muscle does the buccal nerve pierce?

Answer 40

the buccinator

Question 41

T/F the buccal n. innervates the buccinator

Answer 41

False. innervated by facial

Question 42

after it pierces the muscle, where does the buccal nerve lie?

Answer 42

along the buccal shelf

Question 43

T/F the buccal nerve will not be anesthetized when doing an IA block

Answer 43

True

Question 44

where does the lingual nerve pass?

Answer 44

inferiorly on the medial pterygoid in the pterygomandibular space

Question 45

what does the lingual n. innervate?

Answer 45

-epithelium of the ant. 2/3rds of tongue -all lingual gingiva and lingual mucosa along the floor of the oral cavity

Question 46

where does the IA nerve pass?

Answer 46

inferiorly on the medial pterygoid in the pterygomandibular space lying lateral to the sphenomandibular lig.

Question 47

what does the IA divide into?

Answer 47

the incisive and mental nn's

Question 48

what does the IA innerveate?

Answer 48

all mand teeth & PDL through dental plexus (specifically from molars to 2nd premolar)

Question 49

what will the mental nerve supply?

Answer 49

-chin -buccal gingiva and mucosa from premolars ant. -lower lip

Question 50

what's the closest you'll get to a V3 nerve block?

Answer 50

gow-gates