Spine Flashcards
spinous processes are bifid except C__
C7
C_ = atlas
C_ = axis
C1 - atlas
C2 - axis
There isn’t a intervertebral disc between the first and second cervical vertebrae. T/F
true
which vertebrae doesn’t have a body, spinous process or short transverse processes?
atlas
which vertebrae has dens to allow for rotation of the head?
axis
dens
odontoid process; acts as a pivot for head rotation
what is the distinguishable feature of thoracic vertebrae?
costal facets for rib articulations
what part of the rib articulates with the vertebral body?
head of the rib
what part of the rib articulates with the transverse process of the vertebrae?
tubercle of the rib
intervertebral discs are classified as ____ joints.
symphysis
outer ring of intervertebral discs
annulus fibrosus
soft central core of intervertebral discs
nucleus pulposus
what occurs if someone has a herniated disc?
nucleus pulposus protrudes through the annulus fibrosis
what is the shock absorbing portion of the intervertebral discs?
nucleus pulposus
sacrum has how many vertebrae fused together?
5
fused transverse processed in the sacrum becomes?
ala/lateral masses
bony landmark that separates the abdominal cavity from pelvic cavity
sacral promontory
coccygeal cornua
attachment point for ligaments
where is the coccygeal cornua found?
projecting off the first coccygeal segment
how many bones are typically fused to form the coccyx?
3 to 5
where does the spinal cord end?
~T12-L1
HU for grey matter
35-45 HU
HU for white matter
20-30 HU
conus medullaris
region at T12-L1 where spinal cord ends
cauda equina
collection of nerves extending beyond the conus medullaris
epidural space
between vertebral canal and dura mater
subdural space
between dura mater and arachnoid mater
subarachnoid space
between arachnoid and Pia mater
indications for CT spine
- fx
- dislocation
contraindication for CT spine
pregnancy hand extensive hardware
region between the body and transverse process of a vertebra
pedicle
cord of Pia mater anchored to the coccyx
filium terminale
superiorly projecting from C2
odontoid process (“dens”)
distal region of the spinal cord
conus medullaris
ascends superiorly through the transverse foramina
vertebral artery
exaggerated thoracic curvature
kyphosis
region between transverse process and spinous process
lamina
anteriorly convey cervical curvature is present:
a) at birth
b) when a child starts to walk
c) when a child starts to hold its head up
d) as an abnormality
c) when a child starts to hold its head up
inner spinal cord consists of
grey matter
spinal cord sits within this structure.
vertebral foramen
process that sticks out posteriorly from vertebrae
spinous process
process that projects laterally from the junction of the laminae and pedicles.
transverse process
sacrum articulates laterally with these bones
iliac bones
