Skull Exam 1 Review

Question 1

how many bones in the skull

Answer 1

22

Question 2

how many cranial bones

Answer 2

8

Question 3

how many facial bones

Answer 3

14

Question 4

cranial bones are rigidly joined together by articulations called

Answer 4

sutures

Question 5

all of the following are cranial bones except:
sphenoid
occipital
frontal
maxilla

Answer 5

maxilla

Question 6

which skull suture is located between the parietal bones

Answer 6

sagittal

Question 7

which bone in the skull contains the auditory organs and the organs of hearing

Answer 7

temporal

Question 8

in a typically shaped head the petrous pyramids project anteriorly and medially at what angle

Answer 8

47 degrees

Question 9

which skull type is narrow from side to side

Answer 9

dolichocephalic

Question 10

which of the following is perpendicular to the plane of the IR for a Caldwell projection of the skull

Answer 10

OML

Question 11

If the infraorbitomeatal line is placed perpendicular to the IR during an AP axial Towne projection of the skull how much is the CR angled

Answer 11

37 degrees caudad

Question 12

a PA cranial projection obtained with the patient’s face rotated towards the right side demonstrates

Answer 12

a greater distance from the lateral orbital margin to the lateral cranial cortex on the left side than on the right

Question 13

which bones are contained in the calvarium

Answer 13

frontal and parietal only

Question 14

In a projection of the lateral cranium the CR is ____ inches superior to the EAM

Answer 14

2 inches superior

Question 15

A PA cranium projection demonstrating the petrous ridges superior to the supraorbital margins

Answer 15

patients chin was tucked more than the required amount

Question 16

the superior aspect of the sphenoid bone contains a deep depression that contains the

Answer 16

pituitary gland

Question 17

PA projection when the frontal bone is the primary interest the CR is perpendicular and exits the

Answer 17

nasion

Question 18

what auditory ossicles is attached to the tympanic membrane

Answer 18

malleus

Question 19

anatomy shaped like a saddle

Answer 19

dorsum sellae

Question 20

suture located between the occipital bone and the parietal bones

Answer 20

lambdoidal

Question 21

how old is a child when he or she’s skull is considered adult size

Answer 21

12 years old

Question 22

the crista galli is part of what bone

Answer 22

ethmoid

Question 23

what is the average CR angulation for the PA axial Haas projection of the skull

Answer 23

25 degrees cephalad

Question 24

what is clearly demonstrated within the foramen magnum during an AP axial Towne projection

Answer 24

dorsum sellae and posterior clinoid process

Question 25

In the Townes position for the skull the CR will enter approximately 2.5 inches above the

Answer 25

glabella

Question 26

which skull suture is found between the frontal and parietal bones

Answer 26

coronal suture

Question 27

which bone has condyles that articulate with the atlas of the C spine

Answer 27

occipital

Question 28

which skull projection will demonstrate the petrous ridges within the orbits, the posterior ethmoid air cells, frontal sinuses, and crista galli

Answer 28

PA

Question 29

the petromastoid portion is a part of which bone

Answer 29

temporal

Question 30

where is the tympanic membrane located

Answer 30

in the middle ear

Question 31

from which cranial bone does the zygomatic process arise

Answer 31

temporal bones

Question 32

The pterygoid process project inferiorly from what cranial bone

Answer 32

sphenoid

Question 33

which positioning landmark is located on the maxillae

Answer 33

acanthion

Question 34

which bones comprise the bridge of the noise

Answer 34

nasal bones

Question 35

positioning landmark located at the base of the nasal spine

Answer 35

acanthion

Question 36

thickest and densest portion of the cranial bones

Answer 36

petrous portion of the temporal bones

Question 37

what is the large apeture in the occipital bone, through which the medulla oblongata and spinal cord exit termed?

Answer 37

foramen magnum

Question 38

The superior aspect of the sphenoid bone contains a deep depression that contains the

Answer 38

pituitary gland

Question 39

the opening into the apex of the orbit for the transmission of the optic nerve and the ophthalmic artery is the

Answer 39

optic foramen

Question 40

which line should the CR be perpendicular to for an SMV projection

Answer 40

infraorbitalmeatal line

Question 41

CR angulation for SMV

Answer 41

0 degrees

Question 42

line parallel to the plane of the IR for the SMV

Answer 42

IOML

Question 43

skull type considered average in size and shape

Answer 43

mesocephalic

Question 44

zygomatic arches are a part of which bone

Answer 44

temporal bone

Question 45

petromastoid portion is a part of which bone

Answer 45

temporal bone