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Flashcards in Skull and Cranium Deck (67)
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1

cranial cavity (bony structure)
-function

protective coat for brain and branstem components of the CNS

2

what is directly inside the cranial cavity?

series of connective tissue layers termed mininges

3

function of meninges

protection and support for brain and brainstem
participate in the venous part of the vascular system for the brain
provide limits to various compartments to the brain and cranial cavity

4

important structures evident within the cranial cavity to serve to connect the brain with structures outside of the cranial cavity
-these structures must pass through

blood vessels
cranial nerves
must pass through meningeal layers and bones of cranium

5

bones of the skull

frontal bone
parietal bones
temporal bones
sphenoid bone
occipital bone

6

frontal bone components

supraorbital ridge
-supraorbital foramen (notch)
coronal suture

7

coronal suture function

connects frontal bone to parietal bones

8

parietal bones components

sagittal suture
lambdoid suture
superior and inferior temporal lines

9

sagittal suture function

connects parietal bones

10

lambdoid suture function

connects parietal bones with occipital bone

11

temporal bones
-articulate with...

parietal
occipital
sphenoid
zygomatic

12

temporal bones parts

squamous part (flat part)
petromastoid part
tympanic part

13

petromastoid part of temporal bone
-components

styloid process
-muscle attachment
mastoid process
-muscle attachment
-mastoid air cells

14

tympanic part of temporal bones components

external auditory (acoustic) meatus

15

temporal bones components

zygomatic process (part of zygomatic arch)
-mandibular fossa
pterion

16

pterion of temporal bone
-articulation of...
-when is it completely sealed off?
--implication
-remnant of...

articulation of
-frontal, parietal, sphenoid, and temporal bones (in temporal fossa)
never completely sealed off
-not necessarily the most stable
remnant of fibrous joint

17

sphenoid bone
-used to be called the...
-components

more structures on interior surface of skull
used to be called the pterygoid bone
-spheno- and pterygo- can be used interchangeably
components
-greater and lesser wings
-sphenoid sinuses
-medial and lateral pterygoid plates - infratemporal fossa

18

occipital bone components

occipital condyles
superior and inferior nuchal lines
external occipital protuberance (inion)
foramen magnum
jugular foramen
hypoglossal foramen

19

foramen magnum is between which bones

occipital
temporal

20

bones of the face

nasal bones
maxilla bones
mandible
zygomatic bone

21

maxilla bones components

intermaxillary suture - hard suture
maxillary sinus
zygomatic process
frontal process
infraorbital foramen (notch)

22

mandible
-parts

body
ramus
coronoid process
condylar process

23

body of mandible components

mental foramen
alveolar processes
mylohyoid line

24

mylohyoid line
divides...

sublingual and submandibular fossa

25

ramus of mandible components

lingula
mandibular foramen

26

zygomatic bone
-articulates with...
-component

articulates with
-frontal
-maxilla
-sphenoid
-temporal
component
-zygomatic arch

27

zygomatic arch is made up of...

zygomatic process of temporal bone
temporal process of zygomatic bone

28

orbit
-names of the walls

superior
medial
inferior
lateral

29

superior wall components

orbital plate of frontal bone
lesser wing of sphenoid bone
optic canal

30

medial wall components

ethmoid bone
frontal bone
lacrimal bone
sphenoid bone