Introduction to the Skull and Cranium

Question 1

neurocranium paired

Answer 1

known as brain box
parietal bone
temportal bone

Question 2

neurocranium unpaired

Answer 2

frontal
occipital
sphenoid
ethmoid

Question 3

viscerocranium paired

Answer 3

facial skeleton
lacrimal bone
nasal bone
zygomatic bone
maxilla
inferior nasal concha
palatine bone

Question 4

viscerocranium unpaired

Answer 4

facial skeleton
- mandible and vomer

Question 5

name the 5 cavities on the anterior skull

Answer 5

2 orbital
2 nasal cavities
1 oral cavity

Question 6

the glabella

Answer 6

smooth part of the forehead above and between the eyebrows

Question 7

Superorbital notch (foramen)

Answer 7

foramen found above orbital

Question 8

Alveolar process of maxilla

Answer 8

found in the gums
- holds the root of the teeth

Question 9

infraorbital foramen of maxilla

Answer 9

on either side of the nose

Question 10

Mental foramen of mandible

Answer 10

on either side of the chin

Question 11

temporal fossa

Answer 11

the area on the side of the cranium from which the temporal muscle arises

Question 12

Name the 3 sections of the cranial fossae

Answer 12

1. anterior
2. middle
3. posterior

Question 13

the _______ is found at the junction of the frontal, sphenoid, parietal and temportal bone

Answer 13

Pterion
- thinnest part on the lateral side of the skull
- easiest part to drill if there is a bleed in the skull

Question 14

the _____________ is between the two parietal bones of the skull

Answer 14

sagittal suture

Question 15

the ____________ is formed between the two parietal bones and the frontal bone

Answer 15

coronal suture

Question 16

the ____________ connects the parietal bones with the occipital bone

Answer 16

lamboid suture

Question 17

the {____________ is the junction between the coronal suture and the sagittal suture

Answer 17

bregma

Question 18

the ____________ is the junction between the sagittal suture and the lambdoid suture

Answer 18

lambda

Question 19

the ____________ the junction where the 2 frontal and 2 parietal bones meet. This remains soft until about _______

Answer 19

anterior fontanelle, 18m-2y

Question 20

the ____________ is the junction of the 2 parietal bones and the occipital bone. This closes by the time the baby is _____

Answer 20

posterior fontanelle, 1-2m

Question 21

____________ is a depression on the front of the maxillary bone above the incisor teeth.

Answer 21

incisive fossa

Question 22

The ____________ and the ____________ form the hard palate

Answer 22

palatine bone and the maxilla

Question 23

the ____________ is the posterior opening of the nasal cavity. It is seperated by the ____________

Answer 23

choanae. by the vomver

Question 24

The ____________ is the small bony projection that serves as the origin for the TMJ ligament

Answer 24

articular tubercle

Question 25

the ____________ an oval depression behind the anterior root of the zygomatic process of the temporal bone for the reception of the condyle of the mandible.

Answer 25

mandibular fossa

Question 26

Cranial nerve CVII passes through the _______

Answer 26

Stylomastoid foramen

Question 27

The ___________is a deep depression in the inferior part of the temporal bone at the base of the skull

Answer 27

jugular fossa

Question 28

the ___________ articulate with the superior articular facets of the atlas (C1).

Answer 28

occipital condyles

Question 29

what passes through the foramina of cribriform plate

Answer 29

olfactory nerve bundles

Question 30

what passes through the optic canal?

Answer 30

optic nerve ophthalmic artery

Question 31

what passes through the superior orbital fissue?

Answer 31

oculomotor nerve trochlear nerve lacrimal, frontal and nasociliary of ophthalmic nerve branches of ophthalmic nerve (V1) abducent nerve

Question 32

what passes through foramen rotundum

Answer 32

maxillary nerve (V2)

Question 33

what passes through foramen ovale

Answer 33

mandibular nerve (V3)

Question 34

what passes through foramen spinosum

Answer 34

middle meningeal artery and vein

Question 35

what passes through carotid canal

Answer 35

internal carotid artery

Question 36

what passes through the internal acoustic meatus

Answer 36

facial nerve (7) vestibulocochlear nerve (8)

Question 37

what passes through the jugular foramen

Answer 37

glossopharyngeal nerve (9) vagus nerve (10) Accessory nerve (11)

Question 38

what passes through the hypoglossal canal

Answer 38

hypoglossal nerve (11)

Question 39

what passes through foramen magnum

Answer 39

medulla oblongata meninges vertebral arteries spinal roots of accessory nerves