Head review

sella turcica

squamosal

the posterior half of the base of the skull is formed by which bone

occipital

the tickest and densest portion of bone in the cranium is the

petrous portion of the temporal bone

the CR angle for the PA axial Caldwell projection of the skull is

15 degrees caudad

the petromastoid portion is a part of which bone

temporal

projection

PA

the suture located between the occipital bone and the parietal bones is the

lambdoidal

CR angle and line

perpendicular to IOML

how was the CR directed

perpendicular

for an SMV projection of the cranial base the CR should always be perpendicular to the

infraorbitomeatal

petrous portion

which bone has condyles that articulates with the atlas of the cervical spine

occipital

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

pituitary gland

which of the following lines is placed perpendicular to the image receptor plane for the AP axial Towne projection

orbitomeatal line

all of the following are cranial bones except the

maxillae

the cr and center of the image receptor position for a lateral projection of the skull is ? Inches ? the EAM

2 above

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

temporal

AP axial towne

the large aperture in the occipital bone through which the medulla oblongata and spinal cord exits the

foramen magnum

which of the following skull types is considered average in size and shape

mesocephalic

all of these structures are demonstrated on an AP axial towne projection of the skull except

frontal bone

the base of the anterior portion of the occipital bone contains two large opening that allow blood vessels and nerves to pass through. these two openings are called the

jugular foramina

parietal

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

orbitomeatal line

the six areas of incomplete ossification in a newborn infants skull are called

frontanels

if the patient cannot flex the neck to place the orbitomeatal line perpendicular to the image receptor for an AP axial towne projection which line should be placed perpendicular

infraorbitomeatal line

the cranial bones are rigidly joined together by articulations called

sutures

which line should be placed parallel to the plane of the image receptor for the SMV projection of the cranial base

infraorbitomeatal

PA axial Caldwell

which plane of the head is placed parallel to the plane of the image receptor for a lateral projection of the skull

midsagittal

Towne

Which projection of the skull requires MSP be positioned parallel and interpupillary line perpendicular to IR plane

Lateral

dorsum sellae

which skull type is narrow from side to side

for the SMV (skull, mandible, and sinuses) the CR is directed perpendicular to what line

infraorbitomeatal

zygoma

body

outer canthus

axiolateral oblique of the mandibular body

what is the CR angle for the AP axial modified towne method of the TMJ’s if the OML is aligned perpendicular to the IR

35 caudad

how is the head positioned to demonstrate the body of the mandible in the axiolateral oblique projection

30 degrees toward the IR

which of the following is placed perpendicular to the front edge of the IR for a lateral projection of the facial bones

infraorbitomeatal line

the maxillary sinus is located in which bone

maxilla

which of the following is centered to the image receptor for a parietoacanthial projection of the facial bones

acanthion

the largest sinus is the

maxillary

which sinus is located immediately below the sella turcica

sphenoidal

all of the following are facial bones except the (ethmoid, maxillae, mandible, zygomatic bones)

ethmoid

sphenoidalw

which projection will best demonstrate the frontal and anterior ethmoidal sinuses

PA caldwell method

letter G

lacrimal

the orbit is made up of __ cranial bones and __ facial bones

3, 4

the parietoacanthial projection of the facial bones is commonly called the __ method

Waters

all of the following are clearly demonstrated on the parietoacanthial projection (Waters method) except (foramen magnum, orbits, zygomatic arches, maxillae)

formen magnum

letter C

maxillary sinuses

all of the following bones contain air sinuses except ( frontal, parietal, ethmoid, sphenoid)

parietal

which of the following positioning lines is placed perpendicular to the image receptor for a parietoacanthial waters method

MML

maxillary

if the patient cannot flex the neck to place the OML perp to the image receptor for an AP Axial Towne projection which line should be placed perp to the IR and include an adjustment for the CR angle

IOML

letter D

sphenoid

how many bones make up the face

14

which facial bone contains a foramen through which tear duct passes

lacrimal

ethmoid

which positioning line must be aligned perp to the IR for the PA mandible

OML

projection (method)

parietoacanthial (waters)

ramus

which of the following must be projected below the maxillary sinuses for the parietoacanthial projection (waters method) of the sinuses

petrous pyramids

maxilla

how many bones compose the bony orbit

7

how must the head be positioned to best demonstrate the ramus of the mandible in an axiolateral projection

lateral

for a lateral projection of the facial bones the CR is directed to the

zygoma

which projection best demonstrates the maxillary sinuses

parietoacanthial (waters)

for a lateral projection of the facial bones, the CR will enter

halfway between the outer canthus and the EAM

which paranasal sinuses are labeled with the letter A in this image

frontal

waters

parietoacanthial (modified waters)

where are the petrous ridges seen on an accurately positioned image of the parietoacanthial waters method projection of the paranasal sinuses

inferior to the floor of the maxillary sinuses

letter B

frontal

the zygomatic arches are a part of which bone

temporal

the radiographic appearance of the erosion of bony rib margins is a possible indication of

osteomyelitis

which of the following features makes the cervical vertebra unique as compared with other vertebrae of the spine (transverse, overlapping vertebral bodies, bifid on spinous processes)

all

what is the joint space between the manubrium and body of sternum called

sternal angle

which aspect of the rib articulates with the thoracic vertebral body

head

flexing the neck

which 2 projections should be performed for an injury to the right anterior upper ribs

PA and RAO

which ribs are considered to be true ribs

1-7

the condition of the lumbar spine in which there is anterior displacement of one vertebra over another is termed

spondylolisthesis

the intervertebral foramina of the cervical spine open

45 anteriorly and 15 inferiorly

a radiograph of an AP open mouth projection reveals that the base of the skull is superimposed over the dens

excessive extension of the skull

which articulation involves the tubercle of a rib

costotransverse

the zygapophyseal joints of the cervical spine are clearly demonstrated on which projection

lateral

where is the articular pillar located on a cervical vertebra

between the superior and inferior articular processes

the z joints for the typical cervical vertebra lie at an angle of __ in relation to the midsagittal plane

90

avulsion fracture of the spinous process of any vertebra C6-T1

clay shovelers

this fracture extends through the pedicles of C2

hangmans

fracture of the anterior and posterior arches of C1

jefferson