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Flashcards in Quiz 1 Material Deck (34)
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1

Anterior cranial fossa
Cribriform plate soft tissue? (ST)

olfactory nerve, I

2

Anterior crnail fossa
Cristae galli (ethmoid) ST

falx cerebri

3

Middle Cranial Fossa
Optic foramen opens to OPTIC CANAL st?

optic n., II
ophthalmic a.

4

Middle Cranial Fossa
superior orbital fissure

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

5

Middle Cranial Fossa
Foramen rotundum

maxillary n., V2

6

Middle cranial fossa
foramen ovale

mandibular n V3
lesser petrosal n.

7

middle cranial fossa
foramen spinosum

middle meningeal a.

8

Middle Cranial Fossa
foramen lacerum

large amounts of cartilage

9

posterior cranial fossa
internal acoustic (auditory) meatus

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

10

posterior cranial fossa
jugular foramen

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

11

posterior cranial fossa
foramen magnum

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

12

foramina of front skull
supraorbital notch/foramen

supraorbital n. and vessels

13

foramina of front skull
infraorbital

infraorbital nerves and vessels

14

foramina of front skull
nasolacrimal canal

nasolacrimal duct.

15

foramina of front skull
mental foramen

mental nerves and vessels

16

foramina of base of skull
petrotympanic fissure

tensor veli palatini muscle

17

foramina of base of skull
stylomastoid foramen

facial n. VII

18

internal occipital protuberance

site of the confluence of venous sinuses

19

Frontal crest

Beginning of the superior sagittal venous sinus

20

The cavernous sinuses' contents

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

21

Orbicularis oculi
Orbital's origin, insertion, and action

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

22

Orbicularis oculi
palpebral part's origin, insertion, and action

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

23

levator labii superioris (mouth) OIA

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

24

Zygomaticus major OIA

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

25

Buccinator

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

26

Levator anguli oris

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

27

orbicularis oris

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

28

Depressor anguli oris

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

29

Depressor labii inferioris

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

30

Mentalis

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