Skull

Question 1

Occipital Bone

Answer 1

back of the head; inferior to parietal bone

Question 2

Frontal bone

Answer 2

anterior dome of head

Question 3

Parietal Bone

Answer 3

posterior dome of head

Question 4

Temporal bone

Answer 4

lateral regions of cranial base

Question 5

Zygomatic bone

Answer 5

cheekbones; form part of lateral wall of each orbit and cheeks

Question 6

Sphenoid bone

Answer 6

butterfly shaped bone that forms the centerpiece base of cranium

Question 7

Orbit

Answer 7

eye socket

Question 8

Ethmoid bone

Answer 8

wall between anterior floor of cranial cavity and roof of nasal cavity

Question 9

Maxillary bone

Answer 9

form the central part of facial skeleton

Question 10

Mandible

Answer 10

lower jaw

Question 11

Lacrimal bone

Answer 11

small paired bones that form part of medial wall of each orbit

Question 12

Nasal bone

Answer 12

facial bone; left and right sides form “bony” bridge of nose

Question 13

Hyoid bone

Answer 13

slender, curved bone located inferor to skull between mandible and larynx

Question 14

Vomer bone

Answer 14

unpaired facial bone, runs vertically along midline of nasal cavity

Question 15

Palatine bone

Answer 15

small bone w/ distinct L-shape that makes up hard palate, nasal cavity, and eye orbit

Question 16

Lambdoidal suture

Answer 16

extends like an arc across the posterior surface of skull

Question 17

Foramen magnum

Answer 17

foramen of the occipital bone; opening where spinal cord enters

Question 18

Occipital condyles

Answer 18

two large protuberances on undersurface of occipital bone; located beside front half of foramen magnum

Question 19

Hypoglossal canal

Answer 19

anteromedial edge of each occipital condyle

Question 20

External occipital protuberance

Answer 20

bump on the back of the head

Question 21

Groove for transverse sinus

Answer 21

run laterally in a groove along the interior surface of occipital bone

Question 22

Sagittal suture

Answer 22

connects the left and right parietal bones almost exactly in the midline of skull

Question 23

Coronal suture

Answer 23

runs a coronal plane that articulates between frontal and parietal bones

Question 24

Supraorbital foramen

Answer 24

midpoint of each supraorbital margin of orbit in frontal bone

Question 25

Glabella

Answer 25

superior to nasal bones and between the orbits; "unibrow"

Question 26

Internal auditory (acoustic) meatus

Answer 26

canal within petrous part of temporal bone of skull between posterior cranial fossa and inner ear

Question 27

External auditory (acoustic) meatus

Answer 27

tubular passage within auricular

Question 28

Squamosal suture

Answer 28

articulates the temporal and parietal bone

Question 29

Petrous portion

Answer 29

pyramid shaped and wedged at base of skull between sphenoid and occipital bone

Question 30

Squamous portion

Answer 30

lateral flat surface of temporal bone immediately inferior to squamous suture

Question 31

Groove for sigmoid sinus

Answer 31

groove in posterior cranial fossa

Question 32

Mandibular fossa (glenoid)

Answer 32

depression in temporal bone that articulates with the mandible

Question 33

Temporal bone (3) processes: 1) zygomatic 2) styloid 3) mastoid

Answer 33

1) articulates w/ zygomatic bone to form zygomatic arch 2) attachment site for hyloid bone ligaments and muscles 3) cone shaped bone projection at base of skull posterior and inferior to ear

Question 34

Temporal bone has 3 canals 1) Jugular foramen 2) Carotid canal 3) Stylomastoid foramen

Answer 34

1) between temporal and occipital bone (posterior to carotid canal) 2) petrous part of temporal bone 3) between mastoid and styloid processes of temporal bone

Question 35

Temporal process

Answer 35

long, arched process projecting from the lower part of squamous portion of temporal bone

Question 36

Superior orbital fissure

Answer 36

posterior part of orbit between greater and lesser wings of sphenoid bone

Question 37

Sella turcica - hypophyseal fossa

Answer 37

bony enclosure around hypophyseal fossa; houses pituitary gland

Question 38

Pterygloid process

Answer 38

vertical projections that begin at boundary between greater and lesser wings

Question 39

Lesser wing of sphenoid

Answer 39

form part of anterior cranial fossa; contain optic canal

Question 40

Greater wings of sphenoid

Answer 40

form part of middle cranial fossa and orbit

Question 41

Foramen lacerum

Answer 41

foramen situated anteromedial to carotid canal

Question 42

Foramen rotundum

Answer 42

circular hole in sphenoid bone that connects middle cranial fossa and pterygopalatine fossa

Question 43

Foramen spinosum

Answer 43

just anterior to spine of the sphenoid bone and just lateral to foramen ovale

Question 44

Foramen ovale

Answer 44

at the base of skull; posterior part of sphenoid bone; posterolateral to the foramen rotundum

Question 45

Olfactory foramina

Answer 45

opening to crisiform plate of the ethmoid bone for passage of olfactory nerves

Question 46

Crista galli

Answer 46

Upper part of perpendicular plate of the ethmoid bone

Question 47

Nasal conchae

Answer 47

scroll shaped bony elements forming the upper chambers of the nasal cavities

Question 48

Perpendicular plate (part of nasal septum)

Answer 48

forms the superior portion of nasal septum

Question 49

Cribiform plate

Answer 49

structure between anterior cranial fossa and nasal cavity

Question 50

Interalveolar septum

Answer 50

bony ridges situated between dental alveoliin alveolar arches of upper and lower jaw bones

Question 51

Incisive canal

Answer 51

a narrow branched passage that extends from floor of nasal cavity to incisive fossa

Question 52

Palatine processes

Answer 52

either of a pair of horizontal plates of upper jawbones that form the front portion of roof of mouth

Question 53

Infraorbital foramen

Answer 53

opening inferior to orbit in maxilla

Question 54

Alveolar process

Answer 54

inferior portion of maxillae that house the teeth

Question 55

Alveolar margin

Answer 55

extensions of mandible of maxima, either on roof of mouth between upper teeth and hard palate or bottom of mouth behind teeth

Question 56

Mandibular angle

Answer 56

posterior border at junction of lower border of ramus of mandible

Question 57

Mandibular notch

Answer 57

U-shaped depression between coronoid and condylar processes

Question 58

Coronoid process

Answer 58

attachment of temporalis muscle

Question 59

Body of mandible

Answer 59

anterior portion of mandible and is bound by two surfaces and two borders

Question 60

Mandibular symphysis

Answer 60

the line of fusion of the lateral halves of the body of the mandible which splits inferiorly to form the mental protuberance

Question 61

Mental foramen

Answer 61

inferior to second premolar on anterolateral surface of mandible

Question 62

Mandibular condyle

Answer 62

head of mandible

Question 63

Ramus

Answer 63

angular extension of a bone relative to rest of surface

Question 64

Mandibular foramen

Answer 64

medial surface of ramus of mandible

Question 65

Lacrimal duct

Answer 65

a duct located inside corners of upper and lower eyelids

Question 66

Horizontal plate

Answer 66

plate of the palatine bone that is situated horizontally, joins the bone of the opposite side, and forms back part of hard palete

Question 67

Palatine foramina

Answer 67

greater and lesser in which perforate horizontal plate