AP06 - Skull and Meninges

Question 1

What are the articulating urfaces of the TMJ?

Answer 1

mandibular fossa and articular tubercle with the mandibular condyle

they are split by and articular disc

Question 2

What kind of cartilage is used in the TMJ?

Answer 2

fibrocartilage, not hyaline cartilage

Question 3

What are the 3 ligaments of the TMJ?

Answer 3

lateral ligament
sphenomandibular ligament
stylomandibular ligament

Question 4

Which nerves might be damaged by anterior dislocation of the mandible?

Answer 4

auriculotemporal nerve

facial nerve

Question 5

What is the divot above the orbit called?

Answer 5

the supraorbital notch

Question 6

Which hole is placed latero-inferiorly to the orbit?

Answer 6

zygomatofacial foramen

Question 7

What hole is placed inferior to the orbit?

Answer 7

The infra-orbital foramen

Question 8

Which hole lies inferior to the infra-orbital foramen?

Answer 8

the maxillary foramen

Question 9

What passes through the mental foramen?

Answer 9

mental nerve (infeior avleolar)
inferior alveolar arteries

Question 10

What structure marks to convergence of the sagittal and lamdoidal sutures?

Answer 10

lambda

Question 11

To what structure of the skull does the SCM attach to?

Answer 11

the mastoid process

Question 12

What is the protuberance at the back of the skull?

What is its’ highest point?

Answer 12

the external occipital protuberance

inion

Question 13

Which bones form the zygomatic arch?

Answer 13

zygomatic and temporal bones

Question 14

Name 3 contents of the foramen magnum

Answer 14

apical ligament of dens
medulla
spinal cord

Question 15

Name 1 content of the foramen ovale

Answer 15

mandibular nerve (CNV)

Question 16

Name 3 nerves of the superior orbital fissure

Answer 16

occulomotor nerve
abducens nerve
trochlear nerve

Question 17

What nerve passes through the foramen rotundum?

Answer 17

maxillary nerve (CNV)

Question 18

Name one nerve and one artery passing through the foramen spinosum

Answer 18

middle meningeal artery

meningeal branch of mandibular nerve

Question 19

Which 2 cranial nerves pass through the internal acoustic meatus?

Answer 19

facial nerve

vestibulocochlear nerve

Question 20

What is more superior, the mandibular foramen or the myohyloid groove?

Answer 20

mandibular foramen

Question 21

What lies anterior to the myohyloid groove?

Answer 21

the myohyloid line

Question 22

What 2 structures lie on the posterior surface of the front of the mandible?

Answer 22

genial tubercles

digastric fossa

Question 23

What are the 2 parts of the obicularis oculi?

Answer 23

palpebral (closes eyes gently)

orbital (forcefully)

Question 24

What muscle sits on the bridge of the nose?

Answer 24

procerus

Question 25

What muscle is both on the front and back of the head?

Answer 25

occipitofrontalis

Question 26

What 3 external muscles control ear movement?

Answer 26

superior auricular anterior auricular posterior auricular

Question 27

Which muscles draw the eyebrow medially and downwards?

Answer 27

corrugator supercilli

Question 28

What are the 2 divisions of nasalis?

Answer 28

transverse | alar

Question 29

What are the functions of alar nasalis and depressor septi?

Answer 29

alar nasalis - draws cartilage down and laterally, opening nostrils depressor septi - pulls nose down

Question 30

What is the function of depressor anguli oris?

Answer 30

draws corner of mouth down and laterally

Question 31

What is the function of depressor labii inferioris

Answer 31

dras lower lip down and laterally

Question 32

What is the function of mentalis?

Answer 32

bottom lip protusion lol

Question 33

What is the function of risorus?

Answer 33

retracts mouth corners

Question 34

What is the function of zygomaticus major

Answer 34

draws corner of mouth up and laterally

Question 35

What is the function of zygomaticus minor?

Answer 35

draws upper lip upward

Question 36

What is the function of levator labii superioris?

Answer 36

raises upper lip, helps form nasolabial furrow

Question 37

What is the function of levator labii superioris alaeue nasi?

Answer 37

raises upper lip and open nostril

Question 38

What is the function of levator anguli oris?

Answer 38

raises corner of mouth, helps form nasolabial furrow

Question 39

Which 2 muscles form the nasolabial furrow?

Answer 39

levator anguli oris | levator labii superioris

Question 40

What muscle closes and protrudes lips?

Answer 40

obicularis oris

Question 41

What does buccinator do?

Answer 41

compresses cheek against teeth

Question 42

What are the 4 muscles of mastication?

Answer 42

masseter temporalis lateral ptygoid medial pterygoid

Question 43

Which TMJ ligament is strongest, what movement does it restrict?

Answer 43

ltaeral ligament | posterior dislocation

Question 44

What nerve injury might effect facial muscle function?

Answer 44

extracranial lesion (facial nerve)