Quiz 2

Question 0

Radiopaque

Answer 0

The light/white portion of a radiograph; resists the passage of x-ray beam

Question 1

Radiolucent

Answer 1

The dark/black portion of a radiograph; readily permits the passage of x-rays; lacks density

Question 2

Cortical bone aka

Answer 2

Cribriform plate

Lamina dura

Question 3

Cortical bone

Answer 3

Means outer layer, appears solid white on radio graphs

Question 4

Cancellous bone

Answer 4

Means spongy bone, located between layers of cortical bone, less dense than cortical bone

Question 5

Process

Answer 5

A marked prominence or projection of bone

Question 6

Ridge

Answer 6

A linear prominence or projection of bone

Question 7

Spine

Answer 7

A sharp thorn like projection of bone

Question 8

Tubercle

Answer 8

A small bump or nodule

Question 9

Tuberosity

Answer 9

A rounded prominence of bone

Question 10

Canal

Answer 10

Tube like passageway through bone that contains nerves and blood vessels

Question 11

Foramen

Answer 11

An opening or hole in bone that permits passage of nerves and blood vessels

Question 12

Fossa

Answer 12

A broad, shallow, scooped out , or depressed area of bone

Question 13

Sinus

Answer 13

A hollow space or cavity or recess in bone

Question 14

Septum

Answer 14

A bony wall or partition that divides two spaces or cavities; appears radiopaque

Question 15

Suture

Answer 15

An immovable joint that represents a line of union between two adjoining bones of the skull

Question 16

Ala tragus line

Answer 16

Line extending from the tragus of the ear to the ala of the nose; machine lines parallel to it

Question 17

Intra oral films

Answer 17

Mid sagittal plane perpendicular to the floor; occlusal plane parallel to the floor

Question 18

Extra oral films

Answer 18

Ala tragus line parallel to predetermined spot on machine

Question 19

Enamel

Answer 19

Radiopaque, most dense structure, thin layer that covers the teeth

Question 20

Dentin

Answer 20

Internal portion of tooth-radiopaque less dense than enamel

Question 21

Cementum

Answer 21

Unable to see (less dense than dentin)

Question 22

Pulp

Answer 22

In center of tooth; Radiolucent; composed of nerves and blood vessels; soft tissue in center of tooth

Question 23

Lamina dura

Answer 23

Made of cortical bone (radiopaque) immediately surrounds the root (thin white line)

Question 24

Cancellous bone

Answer 24

"Arranged like a lattice; spongy bone; less radiopaque than lamina dura

Question 25

Cortical bone

Answer 25

Compact or dense form of bone, lines the outside layers of maxillary and mandible arches

Question 26

Alveolar bone

Answer 26

Radiopaque, composed of cortical and cancellous bone, how teeth are maintained in the jaw

Question 27

Incisive canal foramen

Answer 27

Appears as a small, ovoid Radiolucent area between the roots of maxillary central incisors

Question 28

Median palatine suture

Answer 28

Thin Radiolucent line extending posteriorly through the midline I the palate

Question 29

Nasal fossa

Answer 29

Empty space above the transverse radiopaque band across the palate

Question 30

Nasal septum

Answer 30

Radiopaque vertical line that divides the nasal cavity into left and right sides. May superimpose over the median palatal suture

Question 31

Maxillary sinus

Answer 31

Radiolucent air space above the apices of the premolar and molars

Question 32

Inverted Y

Answer 32

Intersection of maxillary sinus and nasal cavity

Question 33

Malar bone; zygomatic bone

Answer 33

Appears as a diffuse radiopaque band extending posteriorly from zygomatic process of the maxilla

Question 34

Zygomatic process

Answer 34

U shaped radiopacity located superior to the maxillary first molar region; superimposed over the molar root tips

Question 35

Maxillary tuberosity

Answer 35

Radiopaque bulge distal to third molar region

Question 36

Hamular process

Answer 36

Appears as a radiopaque hooklike projection posterior to maxillary tuberosity

Question 37

Coronoid process

Answer 37

Triangle-shaped radiopacity shows up only on maxillary molar periapical images

Question 38

Lingual foramen

Answer 38

Little Radiolucent dot underneath mandibular incisors

Question 39

Genial tubercles

Answer 39

Radiopaque, surrounds the lingual foramen

Question 40

Mental ridge

Answer 40

Linear prominence of cortical bone on the external surface of the anterior portion of the mandible

Question 41

Inferior border of the mandible

Answer 41

Cortical bone

Question 42

Lingual foramen

Answer 42

Radiolucent between the apices of the central incisors

Question 43

Genial tubercles

Answer 43

Tiny bumps of bone that surrounds the lingual foramen

Question 44

Mental ridge

Answer 44

Thick band that extends from premolar region to incisor region

Question 45

Mental foramen

Answer 45

Small, ovoid or round Radiolucent area located in apical region of mandibular premolars

Question 46

Internal oblique ridge

Answer 46

Radiopaque band that extends distal from last molar

Question 47

External oblique ridge

Answer 47

Radiopaque band extending straight down

Question 48

Mylohyoid ridge

Answer 48

Radiopaque band in the mandibular molar region

Question 49

Mandibular canal

Answer 49

Outlined by two thin radiopaque lines that represent the cortical walls of the canal