Skull and cranial nerves

Question 1

important skull bones and features (10)

Answer 1

nasal bones, frontal bone, parietal bone, temporal bone, orbit, zygomatic bone, maxilla, mandible, nasal cavity, occipital

Question 2

other skull bones (6)

Answer 2

ethmoid, inferior concha, lacrimal, sphenoid, vomer, sutural

Question 3

ratio of cranium to face is larger in

Answer 3

infants

Question 4

what is a feature of infant skull bones

Answer 4

haven’t fused yet

Question 5

palpable anterior until 18 months and posterior until 1st year

Answer 5

fontanelles

Question 6

when does the mandible fuse

Answer 6

early 2nd year

Question 7

sutures (3)

Answer 7

coronal, sagittal, lambdoid

Question 8

cross section of cranial sutures

Answer 8

pterion

Question 9

base of skull bones anterior to posterior (4)

Answer 9

frontal, sphenoid, temporal, occipital

Question 10

cranial fossae (3)

Answer 10

anterior, middle, posterior

Question 11

what does the cranial cavity include (2)

Answer 11

brain and cranial nerve openings

Question 12

features of the anterior cranial fossae (4)

Answer 12

frontal bone, crista gali, cribiform plate, lesser wing of sphenoid

Question 13

what does the cribiform plate contain (2)

Answer 13

foramina to nasal cavity and CNI olfactory nerve opening

Question 14

CNI

Answer 14

olfactory nerve

Question 15

features of the middle cranial fossa anterior to posterior (10)

Answer 15

greater wing of sphenoid, optic canal, superior orbital fissure, foramen rotundum, body of shpenoid, sella turcica, foramen ovale, temporal bone, foramen spinosum, foramen lacerum

Question 16

optic canal opens into the

Answer 16

orbit

Question 17

the optic canal contains (2)

Answer 17

optic nerve CNII and opthalamic artery

Question 18

which lobe is in the middle cranial fossa

Answer 18

temporal lobe

Question 19

elements of the sella turcica (3)

Answer 19

anterior clinoid process, posterior clinoid process, hypophoseal fossa

Question 20

the superior orbital fissue opens into the

Answer 20

orbit

Question 21

the superior orbital fissure contains (5)

Answer 21

occulomotor nerve CNIII, trochlear nerve CNIV, trigeminal nerve opthalamic branch CNV1, abducent nerve CNVI, ophthalamic vein

Question 22

foramen rotundum opens into the

Answer 22

pterygopalatine fossa

Question 23

the foramen rotundum contains

Answer 23

trigeminal nerve CNV2 maxillary branch

Question 24

foramen ovale opens into the

Answer 24

infratemporal fossa

Question 25

foramen ovale contains

Answer 25

trigeminal nerve CNV3 mandibular branch

Question 26

foramen spinosum enters into the

Answer 26

infratemporal fossa

Question 27

foramen spinosum contains (3)

Answer 27

middle meningeal artery, middle meningeal vein, meningeal branch of CNV3 trigeminal nerve mandibular branch

Question 28

foramen lacerum contains (2)

Answer 28

petrosal nerves and meningeal arteries

Question 29

brain lobes in the posterior cranial fossa (3)

Answer 29

cerebellum, pons, medulla

Question 30

holes in the posterior cranial fossa (4)

Answer 30

internal acoustic meatus, jugular foramen, hypoglossal canal, foramen magnum

Question 31

bony elements of the posterior cranial fossa (4)

Answer 31

clivius of occipital bone, petrous part of temporal bone, occipital bone, internal occipital protuberence (confluence of sinuses)

Question 32

10 details