SKULL

Question 1

which positioning line extends from the EAM to the outer canthus?

Answer 1

Ordbitomeatal

Question 2

which positioning landmark is located at the base of the nasal spine?

Answer 2

Acanthion

Question 3

which positioning landmark is located at the most superior point of the nasal bones?

Answer 3

Nasion

Question 4

which positioning landmark is the smooth elevation that is located between the superciliary arches?

Answer 4

Gladbella

Question 5

which positioning landmark is most superior?

Answer 5

Glabella

Question 6

where on the skull is the gonion located?

Answer 6

On the lateroposterior part of the mandible

Question 7

where on the skull is the outer canthus located?

Answer 7

On the lateral of each orbit

Question 8

which positioning landmark is located at the anterior portion of the mandible?

Answer 8

Mental point

Question 9

which structure articulates the frontal bone with both parietal bones?

Answer 9

Coronal

Question 10

which suture joins both parietal bones at the vertex of the skull?

Answer 10

Sagittal

Question 11

which suture joins a parietal bone with both a sphenoid bone and a temporal bone?

Answer 11

Squamosal [suture]

Question 12

which suture joins both parietal bones with the occipital bone?

Answer 12

Lambdoidal [suture]

Question 13

the bregma fontanelle is located at the junction of which two sutures?

Answer 13

coronal and sagittal [sutures]

Question 14

the lambda fontanelle is located at the junction of which two sutures?

Answer 14

Lambdoidal and sagittal

Question 15

the bregma fontanelle is located at the junction of which cranial bones?

Answer 15

Frontal and both parietals

Question 16

The lambda fontanelle is located at the junction of which cranial bones?

Answer 16

Occipital and both parietals

Question 17

Which skull classification refers to a typical skull (in terms of width and length)?

Answer 17

Mesocephalic

Question 18

Which skull classification refers to a long, narrow skull?

Answer 18

Dolichocephalic

Question 19

Which skull classification refers to a short, wide skull?

Answer 19

Brachycephalic

Question 20

How many degrees are in the angle formed between the midsagittal plane and the petrous pyramides in the mesocephalic skull?

Answer 20

47 degrees

Question 21

How many degrees are in the angle formed between the midsagittal plane and the petrous pyramides in the brachycephalic skull?

Answer 21

54 degrees

Question 22

How many degrees are in the angle formed between the midsagittal plane and the petrous pyramids in the dolichocephalic skull?

Answer 22

40 degrees

Question 23

On which cranial bone are the superciliary arches located/

Answer 23

Frontal

Question 24

On which cranial bone is the cribriform plate located?

Answer 24

Ethmoid

Question 25

On which cranial bone is the crista galii located?

Answer 25

Ethmoid

Question 26

Which cranial bone has a petrous pyramid?

Answer 26

Temporal

Question 27

On which cranial bone is the sella turcica located?

Answer 27

Sphenoid

Question 28

which cranial bone has the mastoid process?

Answer 28

Temporal

Question 29

On which cranial bone is the perpendicular plate located?

Answer 29

Ethmoid

Question 30

Which cranial bone has both greater and lesser wings?

Answer 30

Sphenoid

Question 31

With which cranial bone does the first cervical vertebra articulate?

Answer 31

Occipital

Question 32

The pterygoid processes project inferiorly from which cranial bone?

Answer 32

Sphenoid

Question 33

The foramen magnum is a part of which cranial bone?

Answer 33

Occipital

Question 34

From which cranial bone does the zygomatic process arise?

Answer 34

Temporal

Question 35

The EAM is a part of which cranial bone?

Answer 35

Temporal

Question 36

The temporal process projects [moc ra] posteriorly from which facial bone?

Answer 36

Zygomatic

Question 37

Which bones comprise the bridge of the nose?

Answer 37

Nasal

Question 38

With which bone does the mandible articulate/

Answer 38

Temporal

Question 39

Where are the lacrimal bones located?

Answer 39

On the medital wall of each orbit

Question 40

Where is the vomer bone found?

Answer 40

On the floor of the nasal cavity

Question 41

Which bone comprises most of the lateral wall of the orbital cavities?

Answer 41

Zygomatic

Question 42

Which term refers to the anterior process of the mandibular ramus?

Answer 42

Coronoid [process]

Question 43

Which term refers to the posterior process of the mandibular ramus?

Answer 43

Condyle [process]

Question 44

Which facial bones have alveolar processes?

Answer 44

Maxillae and mandible

Question 45

Which bones form the posterior one fourth of the roof of the mouth?

Answer 45

Palatine

Question 46

Which positioning landmark is located on the maxillae?

Answer 46

Acanthion

Question 47

Which two positioning lines or planes should be perpendicular to the IR for the PA projection of the skull?

Answer 47

Orbitomeatal line and midsagittal plane

Question 48

With reference to the patient, where should the IR be centered for the PA projection of the skull?

Answer 48

Nasion

Question 49

With reference to the patient, where should the IR be centered for the lateral projection of the skull?

Answer 49

2 inches (5cm) below the EAM

Question 50

With reference to the IR, how should the interpupillary line and the midsagittal plane be positioned for the lateral projection of the skull?

Answer 50

Interpupillary line: perpendicular; midsagittal plane: parrallel

Question 51

For the AP axial projection, Towne method, of the skull, how many degrees and in which direction should the central ray be directed when the OML is perpendicular to the IR?

Answer 51

30 degrees caudad

Question 52

for the AP axial projection, Towne method, of the skull, how many degrees and in which direction should the central ray be directed when the IOML is perpendicular to the IR?

Answer 52

37 degrees caudad

Question 53

Which positioning line should be parallel with the IR for the SMV projection of the skull?

Answer 53

Infraorbitomeatal line

Question 54

Which projection of the skull can be correctly performed wiht the central ray angled 37 degrees?

Answer 54

AP axial, Towne method

Question 55

Which projection of the skull can be correctly performed with the central ray angled 15 degrees?

Answer 55

PA axial, Caldwell method

Question 56

Which projection of the skull produces a full basal image of the cranium?

Answer 56

SMV, Schuller method

Question 57

Which projection of the skull projects the petrous bones in the lower third of the orbits?

Answer 57

PA axial, Caldwell method

Question 58

which projection of the skull should be obtained when the frontal bone is of primary interest?

Answer 58

PA with perpendicular central ray

Question 59

Which evaluation criterion pertains to the AP Axial projection, Towne method, of the skull?

Answer 59

Part of the sella turcica should be seen within the foramen magnum

Question 60

Which evaluation criterion pertains to the PA projection of the skull?

Answer 60

The distance from the lateral border of the skull to the lateral border of the orbit should be the same on both sides

Question 61

Which evaluation criterion pertains to the lateral projection of the skull?

Answer 61

The orbital roofs should be superimposed

Question 62

Which evaluation criterion pertains to the SMV projection of the skull?

Answer 62

The mental protuberance should superimpose the anterior frontal bone

Question 63

For the PA axial projection, Hass method, of the skull, where should the central ray enter the patient's head/

Answer 63

1 1/2 inches (3.8 cm) below the external occipital protuberance

Question 64

How many degrees and in which direction should the central ray be directed for the PA axial projection, Hass method, of the skull?

Answer 64

25 degrees cephalad

Question 65

Which evaluation criterion pertains to the PA axial, Hass method, of the skull?

Answer 65

The dorsum sella and posterior clinoids projected within the foramen magnum