spine (c-spine, t-spine) Flashcards
5 general regions of spine
cervical, thoracic, lumbar, sacrum, coccyx
primary curves are __________; located in the _____________ regions
concave (curves posteriorly, “C” towards front); thoracic and sacral
compensatory curves are ____________; located in the __________ regions
convex (curves anteriorly “C” towards back), cervical and lumbar
exaggerated lateral curvature of the spine
scoliosis
abnormal anterior concavity of the lumbar spine
lordosis
abnormal convexity of the thoracic spine
kyphosis
a typical vertebra consists of two main parts ______________________
vertebral arch (neural arch); body
vertebrae are ____________ bones
irregular
spongy bone is also known as ____________; honey-comb like
trabecular
cortical bone is also known ____________
compact bone
typical joints of the spine
intervertebral, zygapophyseal, costal (t-spine only)
Each vertebral disc is a _______________ joint (a _______); lie between adjacent vertebral bodies in the vertebral column
fibrocartilaginous, symphysis
intervertebral discs act as a ______________________ and ________________
ligament to hold the vertebrae together; absorb shock
what does the “EAM” stand for?
external auditory meatus
zygapophyseal joint are made from the __________________________________
articulating surfaces of 2 vertebral bodies
SID for AP Axial C-Spine
40 inches
CR angle for AP Axial C-Spine
15-20 degree cephalad
CR entrance for AP Axial C-Spine
level of upper margin of thyroid cartilage to pass through C4
respiration on AP Axial C-Spine
suspend respiration
positioning for AP Axial C-Spine
Adjust the head so that a line drawn for the upper incisors to the base of the skull is perpendicular to the IR
AND
a line drawn from the tip of the mandible to the base of the skull is parallel to the CR angle
Eval criteria AP Axial C-Spine
-______________ vertebral bodies
-______________ equal distance from pedicles
-(open/closed) intervertebral disk spaces
-_____________________ should be superimposed
-No rotation
-C3 through T2
-Spinous Processes
-Open
-Mandible and base of the skull
with an AP Axial C-spine exam, the spinous processes move towards the side positioned _________ the IR
farther from
Lateral C-Spine is also called ___________
Grandy Method
SID for Lateral C-Spine
72 inches
CR entrance for Lateral C-Spine
C4
CR angle for Lateral C-Spine
perpendicular to IR
respiration for Lateral C-Spine
full expiration
why full expiration for Lateral C-Spine?
depresses shoulders down
with a Lateral C-Spine, elevate chin to place _______________
AML parallel with the floor
what does AML stand for?
acanthiomeatal line
Evaluation criteria for Lateral C-Spine
-__through ___
-Superimposed __________
-(Open/closed) intervertebral joint spaces
-(Overlap/no overlap) of skull/mandible over spine
-C1 through T1
-articular pillars
-open
-no overlap
AP Open Mouth SID
40 inches
AP Open Mouth positioning
Adjust the head so that, with an open mouth, a line drawn from the ____________________ to the_____________ is perpendicular to the IR
lower margin of the upper incisors, base of the skull
CR angle for AP Open Mouth
perpendicular to IR
CR entrance for AP Open Mouth
through center of open mouth
For an AP Open Mouth, ensure no rotation – ___________________ are equidistant to the IR
mandibular angles and mastoid tips
respiration for AP Open Mouth
suspended respiration
When the patient opens their mouth, have them keep their tongue in the ______. Why?
lower jaw; to prevent the tongue shadow from superimposing over the atlas and axis
Evaluation criteria for AP Open Mouth
-Demonstrate __________
-Symmetrical _____________
-Open joint space
-Occlusal plane and base of skull superimposed
-C1 and C2
-lateral masses
-Occlusal plane and base of skull
AP Open Mouth rotation: side that demonstrates the greater distance is the side _____________________
toward which the face was rotated
For AP Open Mouth, if the teeth are superimposed on the upper dens, reposition by slight _____________ of the neck ______________________
hyperextension, (neck flexed too much; chin too far down)
For AP Open Mouth, if the base of the skull is superimposed on the upper dens, reposition by slight ____________ of the neck ________________________
hyperflexion, (neck extended too much; chin too far up)
AP Fuchs SID
40 inches
AP Fuchs positioning
MML perpendicular to IR