Exam 3: Skull lecture i

Question 1

cranium (skull): the skeleton of the head; includes _ (3)

Answer 1

1. neurocranium
2. calvaria
3. viscerocranium

Question 2

neurocranium: bony case of the _ formed from _ bones

Answer 2

brain; 8 bones (frontal, ethmoid, sphenoid, occipital, temporal (2), and parietal (2))

Question 3

calvaria: aka _ and _ of neurocranium

Answer 3

skullcap; roof of neurocranium

Question 4

viscerocranium: _ skeleton formed from _ bones

Answer 4

facial skeleton ; 15 bones (mandible, ethmoid, vomer, maxilla (2), inferior nasal concha (2), zygomatic (2), palatine (2), nasal bone (2), and lacrimal bone (2))

Question 5

most skull bones are united by interlocking joints called _, which are essentially _ in adults

Answer 5

sutures, immovable in adults

Question 6

suture structural classification

Answer 6

fibrous

Question 7

only the mandible, united to the rest of the skull by a _ joint, is capable of _ movement

Answer 7

synovial joint; independent movement

Question 8

skull bones also provide proximal attachment points for the muscles of _ and for the strong muscles of _ that attach distally on the mandible

Answer 8

facial expression; mastication

Question 9

what are sutural (Wormian) bones

Answer 9

“extra”s bones that occur w/in sutures

Question 10

craniometric points: points on a skull that are used radiographically in medicine and on dry skulls in physical anthropology to make: _ measurements, describe _, and document _

Answer 10

cranial measurements, describe the topography of the skull, and document variations

Question 11

in the anatomical position, the inferior margin of the orbit and superior margin of the external acoustic meatus lie in the same _ plane, the _ plane

Answer 11

horizontal plane the Frankfort horizontal plane (orbitomeatal plane)

Question 12

temporal fossa: a slight depression that houses _

Answer 12

the temporalis muscle and other structures

Question 13

frontal bone: metopic suture: remnant of the fetal _ btwn the _ bones

Answer 13

remnant of the fetal frontal suture btwn the 2 fetal frontal bones

Question 14

frontal bone: orbit/orbital cavity: skull socket containing the _; formed by the _ bone and several other bones

Answer 14

the eye and its appendages; frontal bone

Question 15

t/f: frontal bone has squamous and orbital parts

Answer 15

true

Question 16

frontal bone: nasion: intersection of _ sutures

Answer 16

intersection of frontonasal sutures and internasal suture

Question 17

the nasion is a _ point

Answer 17

craniometric point

Question 18

bone feats of frontal bone: supra-orbital margin: boundary btwn _ and _ parts

Answer 18

squamous and orbital parts

Question 19

bone feats of frontal bone: supra-orbital foramen (notch): allows passage of _ and vessels

Answer 19

supraorbital nerve and vessels

Question 20

bone feats of frontal bone: glabella: smooth area btwn _

Answer 20

tops of orbits in the center of the bone

Question 21

bone feats of frontal bone: superciliary arch: bony ridge just superior to _ extending _ from glabella

Answer 21

superior to supra-orbital margin; laterally from glabella

Question 22

nasal bones: inferior nasal conchae: found on the _ walls of each nasal cavity; protrude _ the cavity

Answer 22

lateral walls; protrude into

Question 23

nasal bones: parts of the ethmoid and vomer bones form the _ the bony part of a wall dividing the nasal cavity in rt and lt parts

Answer 23

bony nasal septum

Question 24

bone feats of zygomatic bone: the _ foramen

Answer 24

zygomaticofacial foramen

Question 25

bone feats of zygomatic bone: the temporal process of zygomatic joins the temporal bone to the _

Answer 25

zygomatic arch

Question 26

bone feats of zygomatic bone: frontal process of zygomatic articulates with

Answer 26

frontal bone

Question 27

maxilla: forms _

Answer 27

upper jaw

Question 28

bone feats of maxilla: alveolar process (or maxilla) includes the tooth sockets for the

Answer 28

maxillary teeth

Question 29

bone feats of maxilla: infra-orbital foramen: for passage of the _ and vessels

Answer 29

infra-orbital nerve

Question 30

bone feats of maxilla: intermaxillary suture: unites _

Answer 30

rt and lt maxillae

Question 31

mandible: lower _; supports the _

Answer 31

lower jaw; supports the mandibular teeth

Question 32

mandible: consists of:

Answer 32

an inferior body and 2 rami

Question 33

bone feats of mandible: angle: _ point of ramus

Answer 33

posteroinferior

Question 34

bone feats of mandible: mental foramen: passage of _ and vessels

Answer 34

mental nerve

Question 35

bone feats of mandible: mandibular symphysis: where the halves of the _ fuse

Answer 35

infantile mandible

Question 36

bone feats of mandible: mental protuberance: _ inferior to mandibular symphysis

Answer 36

elevation

Question 37

bone feats of mandible: condyloid process: forms _ joint w/ _ bone

Answer 37

synovial joint w/ temporal bone

Question 38

bone feats of mandible: coronoid process: for _ attachment

Answer 38

muscle

Question 39

t/f: temporal bone has several parts: squamous, petrous, etc

Answer 39

true

Question 40

bone feats of temporal bone: mastoid process: for _ attachment

Answer 40

muscle

Question 41

bone feats of temporal bone: _ process (of temporal)

Answer 41

styloid process

Question 42

bone feats of temporal bone: zygomatic process of temporal: articulates with _ of zygomatic bone

Answer 42

temporal process

Question 43

pterion: a _ point

Answer 43

craniometric point

Question 44

pterion: _-shaped formation of sutures where frontal, parietal, sphenoid, and squamous part of _ bones meet

Answer 44

H-shaped; temporal bones

Question 45

occipital bone: has several parts, including a _ part

Answer 45

squamous

Question 46

bone feats of occipital bone: _ protuberance

Answer 46

external occipital protuberance

Question 47

bone feats of occipital bone: superior nuchal line: extends _ from each side of the external protuberance

Answer 47

laterally

Question 48

lambdoid suture: separates _ and _ bones from occipital bone

Answer 48

parietal and temporal bones

Question 49

inion: a _ point; the tip of the _

Answer 49

craniometric point; tip of the external protuberance

Question 50

lambda: a _ point; jxn of _ and _ sutures

Answer 50

craniometric point; lambdoid suture and sagittal suture

Question 51

bone feat of parietal bone: parietal (emissary) foramen: not always present; sometimes paired; emissary foramina transmit veins that connect _ veins to the venous sinuses of the _

Answer 51

scalp veins to the venous sinuses of the dura mater

Question 52

coronal suture: joint btwn _ and _ bones

Answer 52

frontal and parietal bones

Question 53

sagittal suture: joint btwn _ and _ bones

Answer 53

rt and lt parietal bones

Question 54

bregma: a _ point; intersection of _ and _ sutures

Answer 54

craniometric point; coronal and sagittal sutures

Question 55

vertex: a _ point; the most superior point of the _

Answer 55

craniometric point; neurocranium

Question 56

bone feats of palatine bones: horizontal plates (of palatines): together w/ palatine processes of maxillae form the _

Answer 56

hard palate

Question 57

bone feats of palatine bones: greater and lesser palatine _

Answer 57

foramina

Question 58

bone feats of palatine bones: choana: 2 large openings separated by the _

Answer 58

vomer

Question 59

incisive fossa/foramen (of maxilla): passage for

Answer 59

nasopalatine nerves

Question 60

vomer bone: midline (unpaired) bone that forms part of the

Answer 60

bony nasal septum

Question 61

sphenoid bone: unpaired bone that consists of

Answer 61

a body and 3 pairs of processes

Question 62

bone feats of temporal bone: opening of _

Answer 62

external acoustic meatus