Skull (complete)

Question 1

calvaria

Answer 1

Bones that make up the brain case:

frontal, occipital, R&L parietal, R&L temporal, sphenoid, and ethmoid bones

Question 2

frontal bone

Answer 2

Paired “forehead” bone

Question 3

frontal sinus

Answer 3

Sinus spaces located in the frontal bone

Question 4

parietal bone

Answer 4

Paired bone; forms the dorsolateral part of the calvaria

Question 5

occipital bone

Answer 5

Forms the caudal wall of the calvaria

Question 6

occipital condyle

Answer 6

Large condyles of the occipital bone; located on either side of the foramen magnum

Question 7

foramen magnum

Answer 7

Ring which surrounds the spinal cord; hole in the bottom of the skull

Question 8

temporal bone

Answer 8

Extends from the zygomatic arch to the occipital lobe; ventrolateral to the parietal bone

Question 9

zygomatic process

Answer 9

Rostral part of the zygomatic arch

Question 10

zygomatic arch

Answer 10

Includes the temporal process and the zygomatic process; forms the ventrolateral eye socket

Question 11

petrosal part

Answer 11

Caudoventral portion of the temporal bone; incloses the inner ear; seen from the medial aspect of a sagittal section

Question 12

tympanic bulla

Answer 12

Bulbous enlargement of the ventral portion of the temporal bone; encloses the middle ear

Question 13

external acoustic meatus

Answer 13

Dorsolateral opening of the temporal bone; boney ear canal

Question 14

cribriform plate

Answer 14

Part of the ethmoid bone which separates the nasal cavity from the calvaria; lacelike structure

Question 15

incisive bone

Answer 15

Forms the rostral portion of the face; holds incisors; and forms the hard palate

Question 16

nasal bone

Answer 16

Forms the bridge of the nose and roof of the nasal cavity

Question 17

nasal cavity

Answer 17

Facial portion of the respiratory passages

Question 18

nasal aperture

Answer 18

Formed by the nasal and incisive bones; opening to the nasal cavity

Question 19

nasal septum

Answer 19

Separates the the nasal cavity vertically

Question 20

ventral nasal conchae

Answer 20

Several elaborate “scrolls” attached to the maxilla

Question 21

dorsal nasal conchae

Answer 21

Single “scroll” attached to the cribriform plate

Question 22

ethmoidal (conchae) labyrinth

Answer 22

Boney portion of the nasal conchae

Question 23

dorsal nasal meati

Answer 23

Space between the nasal bone and the dorsal nasal concha

Question 24

ventral nasal meati

Answer 24

Space around the ventral nasal conchae

Question 25

middle nasal meati

Answer 25

Small space between the dorsal and ventral nasal conchae

Question 26

common nasal meati

Answer 26

Space on either side of the nasal septum

Question 27

orbit

Answer 27

Cavity in the skull where the eyeball sits

Question 28

orbital ligament

Answer 28

Lateral margin of the orbit; connects zygomatic bone to zygomatic process of the frontal bone

Question 29

pterygopalatine fossa

Answer 29

Ventral to the orbit; blend of several bones; attachment point of the pterygoid muscles

Question 30

maxilla (maxillary bone)

Answer 30

Upper "jaw bone"

Question 31

maxillary recess (sinus)

Answer 31

Space between the the maxilla and ethmoid bones

Question 32

infraorbital canal (foramen)

Answer 32

Canal in the maxilla on the dorsal surface

Question 33

hard palate

Answer 33

Composed of several bones: palatine, maxillary, and incisive bones; "roof of the mouth"

Question 34

mandible

Answer 34

Lower portion of the "jaw bone"

Question 35

body of the mandible

Answer 35

Horizontal portion of the mandible; holds the teeth

Question 36

ramus of the mandible

Answer 36

Perpendicular to the body of the mandable; "neck" of the mandible

Question 37

mandibular foramen

Answer 37

Located on the medial side

Question 38

mandibular canal

Answer 38

Canal bounded by the mandibular foramen (medial) and three mental foramina (lateral)

Question 39

mandibular symphysis

Answer 39

Ligament which joins to both mandibles

Question 40

temporomandibular joint

Answer 40

Attachment of the condylar process of the mandible and the temporal bone

Question 41

hyoid apparatus

Answer 41

Serves as an attachment point for muscles which control the tongue and larynx

Question 42

incisor teeth

Answer 42

Most rostral teeth; contained in the incisive bone; 3 per side

Question 43

canine teeth

Answer 43

Large tooth caudal to the incisors

Question 44

premolar teeth

Answer 44

Located caudal to the canine tooth; four on both upper and lower jaws

Question 45

molar teeth

Answer 45

Just caudal to the premolars; two on the upper and 2-3 on the lower jaw

Question 46

alveolus of tooth

Answer 46

Cavity in the jaw where the teeth are located