POSI FINALS QUIZ 1 Flashcards
Method that demonstrates lower cervical
and upper thoracic vertebrae in recumbent
Pawlow Method
The central ray for a lateral position for atlas
and axis is directed to a point,
1 inch distal to the the adjacent mastoid tip
To obtain an ap projection of the cervical
vertabrae without superimposition of the
mandible, one should
15 - 20 degrees cephalad
It is performed to demonstrate the entire
cervical vertebrae
AP Projection Ottonello Method
It requires right and left bending for scoliosis
study ?
PA Projection Ferguson Method
What is the CR angulation for a PA
projection of the sacrum?
15 degree cephalad
What CR angulation should be used to
demonstrate coccyx when the patient is?
10 degrees caudad
Structure of the lumbar vertebrae forming
30-50 degrees to MSP
Articular processes/Scottie dogs
Scottie dog’ sign in an oblique position of
the lumbar vertebrae indicates that
The articular process has been
demonstrated
It does not demonstrate in the routine lateral
position of the thoracic vertebrate
T1- T4
In oblique position for lumbosacral
vertebrae which of the following structure
represents the eye of the Scottie dog sign?
Pedicle
In lateral position of the lumbar spine, the
film is centered at the level of
Iliac Crest
In AP oblique position, the sacro-iliac joint
demonstrated is the one
Farthest from the film
The central ray in AP projection of the
coccyx is directed?
2’ superior to the
pubic symphysis
Position used to demonstrate
spondylolisthesis or exaggerated degrees of
Kyphosis and Lordosis?
Lateral Upright position
Which is true regarding AP oblique position
of the cervical spine
intervertebral foramina farther
from the film is demonstrated
What central ray is utilized when the
vertebral column is not elevated to a
horizontal plane in a male patient in lateral
projection of the thoracic vertebrae?
15 degrees cephalad
What joint is demonstrated if the body is
rotated 30 degrees in an oblique position of
the lumbosacral vertebrae?
Zygapophyseal Joint
Reference point used to demonstrate the
lower cervical and upper thoracic vertebrae
in Swimmers lateral?
C7-T1
Method used to demonstrate the dens lying
within the shadow of the foramen magnum
in AP?
Fuchs Method
In AP Axial Oblique projection of the
sacro-iliac joint, the CR is directed 1”medial
and 1 1⁄2 “ distal of the elevated ASIS at;
20-25 degrees Cephalad
Which of the following projections
demonstrates the amount/degree of
curvature that occurs with the force of
gravity acting on the body?
PA/AP prone or supine projection and Lateral upright projection
Where does the central ray enters when
performing PA Axial projection of the
lumbosacral junction?
Angle of 35 degrees caudal entering the spinous process of L4
the 1st two cervical vertebrae are atypical because they are structurally modified to join the skull.
Atlas & Axis
Other term for ottonello method?
Wagging jaw method
What is the site of spinal fusion in scoliosis
study?
3rd lumbar vertebrae
These are often used to differentiate
primary from compensatory curves.
Bending Studies
Functions of the Vertebral Column:
it encloses and protects the spinal cord;
it acts as a support for the trunk;
it supports the skull superiorly; and
it provides for attachment for the deep muscles of the back and the rib laterally.
It provides a standardized reference point
from which to center the sacrum and coccyx
ASIS
Articulation between articulation process of
the vertebral arches
Zygapophyseal joint
most superior occupying the region of the neck.
Cervical vertebrae (7)
also atypical because it is slightly modified to join the thoracic spine.
7th cervical vertebra
