chapter 8 Flashcards
which two vertebral curvatures are anteriorly concave
thoracic and pelvic
which two vertebral curves are kyphotic curves
thoracic and pelvic
which two vertebral curves are lordotic curves
cervical and lumbar
which two vertebral curves are primary curves
thoracic and pelvic
which spinal condition involves excessive dorsal curvatures of the thoracic vertebral column
kyphosis
which abnormal spinal condition involves and lateral curvature of the vertebral column
scoliosis
short, thick bony processes that project posteriorly from the lateral and superior aspects of vertebral bodies of typical vertebrae
pedicles
which two vertebral structures do transverse processes originate in typical vertebrae
pedicle and lamina
which vertebral structures unite at the origin of the spinous process of a typical vertebra
both laminae
which structure of the typical vertebra are zygapophyses
articular processes
which structure is the dens located
C2
which structure is known as the stlas
C1
which structure is know as the axia
C2
which structure is the dens located
body of C2
which cervical vertebral structures are perforated with a foramen for the passage of the vertebral artery and vein
transverse processes
which vertebral structures have bifib tips
spinous processes of cervical vertebrae
reference to midsagittal plane, how do zygapophyseal joints open in cervical vertebrae
90 degrees laterally
reference to midsagittal plane, how do zygapophyseal joints open in thoracic vertebrae
70-75 degrees anteriorly
thoracic vertebrae differ from cervical and lumbar vertebrae because thoracic vertebrae have
demifacets
which structures articulate with vertebral demifacets
heads and ribs
reference to midsagittal plane, how do zygapophyseal joints open in lumbar vertebrae
30-60 degrees posteriorly
lumbar vertebrae differ from cervical and thoracic vertebrae becuase lumbar vertebrae have
broad, large spinous processes
which parts of the sacrum form the joints with the ilia of the pelvis
auricular surfaces
AP projections that demonstrates the den using the Fuchs method differs from the AP projection (open mouth) because Fuchs method
extends the chin and keeps the mouth closed
radiographers should not use the Fuchs method to obtain the AP projection of the dens if the patient is
suspected to have a fracture or degenerative disease
which projection of the cervical vertebrae demonstrates the dens imaged within the foramen magnum
AP projection (Fuchs method)
which cervical structures are best demonstrated with AP projection (open mouth)
C1 and C2
how should the central ray be directed for the AP projection (open mouth)
perpendicularly
how and where should the central ray be directed for the AP axial projection of the cervical vertebral column
15-20 degrees cephalad tp C4
how should the IR be positioned for the AP axial projection of the cervical vertebral column
centered to C4
for which projection of the cervical vertebrae should the center ray be angled 15-20 degrees cephalad
AP axial projection
which evaluation criterion does not apply to the AP axial projection of the cervical vertebral column
C1 and C2 should be seen without mandibular superimposition
which projection of the cervical vertebral column requires an SID of 72in
lateral projection
which maneuver should be used to help obtain maximum depression of the shoulders in the lateral projection of the cervical vertebral column
suspend respiration after full expiration
what should be done so that the magnified shoulder farthest from the IR is projected below the lower cervical vertebrae for the lateral projection of the cervical verterae
direct a horizontal central ray to C4
what should be done to prevent mandibular rami from superimposing cervical vertebrae in the lateral projection of the cervical vertebral column
elevate the chin
what should be done to reduce the magnification caused by the increased object to image distance in the lateral projection of the cervical vertebrae
use a 72in (183cm) SID
what is the recommended size of the collimated field for the lateral projection of the cervical vertebrae
8x10in (20x24cm)
which projection of the cervical vertebrae demonstrates the spinous processes elevated and widely separated
hyperflexion lateral projection
which projection of the cervical vertebrae demonstrates the spinous processes depressed and in close approximation
hypertension lateral projection
which projection for cervical vertebrae must be exposed with horizontal and perpendicular central ray
lateral
how should the central ray be directed for an AP axial oblique projection of the cervical vertebral column
15-20 degrees cephalad
how should the central ray be directed for the PA axial oblique projection of the cervical vertebral column
15-20 degrees caudad
which projection of the cervical vertebral column best demonstrates the inter vertebral foramina
AP axial oblique projection