Quiz 1 Material

Question 1

Anterior cranial fossa

Cribriform plate soft tissue? (ST)

Answer 1

olfactory nerve, I

Question 2

Anterior crnail fossa
Cristae galli (ethmoid) ST

Answer 2

falx cerebri

Question 3

Middle Cranial Fossa

Optic foramen opens to OPTIC CANAL st?

Answer 3

optic n., II

ophthalmic a.

Question 4

Middle Cranial Fossa

superior orbital fissure

Answer 4

oculomotor n., III
trochlear nerve IV
ophthalmic n., V 1
abducent n. VI
superior and inferior ophthalmic vv

Question 5

Middle Cranial Fossa

Foramen rotundum

Answer 5

maxillary n., V2

Question 6

Middle cranial fossa

foramen ovale

Answer 6

mandibular n V3

lesser petrosal n.

Question 7

middle cranial fossa

foramen spinosum

Answer 7

middle meningeal a.

Question 8

Middle Cranial Fossa

foramen lacerum

Answer 8

large amounts of cartilage

Question 9

posterior cranial fossa
internal acoustic (auditory) meatus

Answer 9

facial n. VII
vestibulocochlear n. VIII
labyrinthine a,.

Question 10

posterior cranial fossa

jugular foramen

Answer 10

interior jugular v
inferior petrosal sinus
glossoppharyngeal IX
vagus X
spinal accessory XI nerves

Question 11

posterior cranial fossa

foramen magnum

Answer 11

spinal cord
vertebral aa
sympathetic plexi
anterior spinal a
posterior spinal aa
roots of accessory XI
meninges

Question 12

foramina of front skull

supraorbital notch/foramen

Answer 12

supraorbital n. and vessels

Question 13

foramina of front skull

infraorbital

Answer 13

infraorbital nerves and vessels

Question 14

foramina of front skull

nasolacrimal canal

Answer 14

nasolacrimal duct.

Question 15

foramina of front skull

mental foramen

Answer 15

mental nerves and vessels

Question 16

foramina of base of skull

petrotympanic fissure

Answer 16

tensor veli palatini muscle

Question 17

foramina of base of skull

stylomastoid foramen

Answer 17

facial n. VII

Question 18

internal occipital protuberance

Answer 18

site of the confluence of venous sinuses

Question 19

Frontal crest

Answer 19

Beginning of the superior sagittal venous sinus

Question 20

The cavernous sinuses’ contents

Answer 20

Internal carotid artery
CN III
CN IV
CN V --> V1 and V2
CN VI

Question 21

Orbicularis oculi

Orbital’s origin, insertion, and action

Answer 21

origin: medial orbital margin
insertion: skin around orbit
action: squeezes eyelids

Question 22

Orbicularis oculi

palpebral part’s origin, insertion, and action

Answer 22

origin: medial palpebral ligament
insertion: tarsal plate
action: closes eyelids

Question 23

levator labii superioris (mouth) OIA

Answer 23

origin: infraorbital margin of maxilla
insertion: lateral half of upper lip
action: raises upper lip, helps form nasolabial furrow

Question 24

Zygomaticus major OIA

Answer 24

o Origin: Posterior part of lateral surface of zygomatic bone
o Insertion: Skin at corner of mouth
o Action: Draws corner of mouth upward and laterally

Question 25

Buccinator

Answer 25

o Origin: Posterior parts of maxilla, mandible and pterygomandibuar raphe o Insertion: Orbicularis oris and lips o Action: Presses cheek against teeth

Question 26

Levator anguli oris

Answer 26

o Origin: Maxilla below infraorbital foramen o Insertion: Skin at corner of mouth o Action: Raises corner of mouth, helps form nasolabial furrow

Question 27

orbicularis oris

Answer 27

o Origin: Maxilla and mandible in midline o Insertion: Skin around mouth o Action: Closes lips, Orbicularis oris: protrudes lips

Question 28

Depressor anguli oris

Answer 28

o Origin: Posterior part of oblique line of mandible o Insertion: Skin at corner of mouth o Action: Draws corner of mouth down and laterally

Question 29

Depressor labii inferioris

Answer 29

o Origin: Anterior part of oblique line of mandible o Insertion: Lower lip at midline o Action: Draws lower lip downward and laterally

Question 30

Mentalis

Answer 30

o Origin: Mandible inferior to incisors o Insertion: Skin of chin o Action: Wrinkles skin of chin and protrudes lower lip

Question 31

What NERVE runs alongside the superficial temporal vessels?

Answer 31

auriculotemporal nerve

Question 32

Transverse facial artery, location and what does it do?

Answer 32

it supplies the superior part of the cheek region

Question 33

Retromandibular vein

Answer 33

maxillary vein + superficial temporal vein. REceives venous blood from occipital vein.

Question 34

External Jugular vein

Answer 34

posterior division of retromandibular vein + posterior auricular vein. DRAINS into suprascapular or subclavian vein.