Deep Face

Question 1

temporal fossa boundaries

Answer 1

post + supr: supr + inf temporal lines

anterior: frontal + zygomatic bones
laterally: zygomatic arch
inferiorly: infratemporal crest

Question 2

temporal fossa floor + roof

Answer 2

floor: frontal + parietal + temporal + sphenoid (greater wing) bones -> form pterion
roof: temporalis fascia

Question 3

infratemporal fossa boundaries

Answer 3

lateral: mandibular ramus
medial: lateral pterygoid plate
anterior: post of maxilla
posterior: tympanic plate + styloid processes
superior: inf surface of greater wing (sphenoid)
inferior: where medial pterygoid muscle attach to mandible near its angle

Question 4

mandibular foramen contents -> mental foramen contents

Answer 4

inf alveolar n/a/v -> mental n/a/v

Question 5

what travels through mylohyoid groove?

Answer 5

mylohyoid n/a/v

Question 6

muscles of mastication

Answer 6

4: temporalis, masseter, lateral + medial pterygoid muscles

Question 7

three parts of maxillary artery

passes through which fossa -> fissure -> fossa

Answer 7

retromandibular, pterygoid, pterygopalatine

infratemporal fossa -> pterygoidmaxilary fissure -> pterygopalatine fossa

Question 8

retromadibular part of maxillary artery branches

Answer 8

5: deep auricular, anterior tympanic, middle meningeal (foramen spinosum), accessory meningeal (foramen ovale), inferior alveolar
(dinosaurs are mean and irritable)

Question 9

pterygoid part of maxillary artery branches

Answer 9

4: masseteric, ptyergoid, deep temporal, buccal

my pterodactyl dates birds

Question 10

pterygoidpalatine part of maxillary artery branches

Answer 10

posterior superior alveolar (alveolar foramen), infraorbital, descending palatine, artery of pterygoid canal, pharyngeal, sphenopalatine (sphenopalatine foramen)
(people in delaware are pushing snow)

Question 11

venous drainage of deep face

Answer 11

pterygoid venous plexus, maxillary, facial, retromandibular veins

Question 12

mandibular n (CNV3) branches

Answer 12

lingual, buccal, inferior alveolar, mylohyoid n, muscular branches
LAMB Is Meat

Question 13

lingual n (branch of CNV3) funct comp + target

Answer 13

part 3: SA
part 2: SA + [SS*, VE-Para/pre] <- from chorda tympani (CNVII) VA
part 1: SA + SS + VE-para/POST (synapse) + VA + sym/post (sumandibular ganglion)

*ant 2/3 of tongue

Question 14

auriculotemporal n funct comp + target

Answer 14

loops around mid mengingeal art
SA (ant ear + temporal)
VE-para/post (otic->parotid gland)
VA

Question 15

buccal n funct comp + target

Answer 15

SA to skin and oral mucosa of cheeks and adjacent gingiva

Question 16

inferior alveolar n funct comp + branches

Answer 16

BM SA -> mental (SA) + mylohyoid (BM SA)

Question 17

V3 muscle branches funct comp + target

Answer 17

3: deep temporal, lateral, medial pterygoid

innervation: masseter, temporalis, lateral + medial pterygoid, tensor veli palantini
BM SA

Question 18

mylohyoid n funct comp + target

Answer 18

BM SA mylohyoid muscle + ant belly of digastric

Question 19

temporomandibular joint, what type of joint? what type of cartilage? covers which articular surfaces?

Answer 19

modified hinge, fibrocartilage (articular disc->sup/inf joint)
mandibular fossa, mandibular condyle, articular tubercle (of temporal bone)

Question 20

TMJ ligaments

Answer 20

4: joint capsule, lateral ligament, stylomandibular ligament (styloid process to angle of mandible) + sphenomandibular (spine of spheno -> lingula of mandible) ligament

Question 21

what does postglenoid tubercle prevent?

Answer 21

posterior dislocation

Question 22

mov’t of TMJ b/t articular disc and mandibular fossa vs mov’t of TMJ b/t articular disc and head of mandible

Answer 22

gliding (translation) vs rotary (hinge-like)

Question 23

masseter muscle funct + inn

Answer 23

CNV3

elevates jaw and protrudes mandible

Question 24

temporalis funct + inn

Answer 24

CNV3

elevates jaw and retracts (only one!) mandible

Question 25

lateral pterygoid funct + inn

Answer 25

CNV3

depress (only one!), protrudes, lateral deviation of mandible

Question 26

medial pterygoid funct + inn

Answer 26

CNV3

elevates, protrudes, lateral deviation of mandible

Question 27

which muscles laterally deviates the mandible?

Answer 27

all four muscles of mastication