Anatomy Flashcards
(343 cards)
number of vertebrae =
how many of each type?
33 7C 12T 5L 5S (fused) 4Co (fused)
vertebra with odontoid process
C2
vertebra with no body =
C1
vertebra prominens =
it has no ___
C7
no transverse foramen
types of movement at facet joints
flexion
extension
lateral flexion
part of spine with most movement =
this is because it has the most ___ facet joints
C
horizontal
less flexion and extension in T spine due to
ribs
rotation at L spine is less than at T because
more vertebral facets
spondylosis =
=>
intervertebral disca lose H2O with age
=> overload facet joints and 2ndry OA
spinal pain in spondylosis is worse on ___
spine extension
Rx that can help with non-multilevel spondylosis =
facet joint injections under fluoroscopy
IV disc degeneration is most frequent at these 2 levels
L4/5
L5/S1
acute prolapse of IV discs is most frequent at these two levels
L4/5
L5/S1
acute IV disc prolapse is usually caused by __ motion -> __ tear = “twang” as is richly innervated > pain on __
most resolve in ___
lifting
annulus
coughing
3 months
in spinal cord motor neurones originate ___ , their bodies lie in ___
anteriorly
anterior grey horn
in spinal cord sensory neurones originate ___, their bodies lie in ___
dorsally
dorsal root ganglion
motor and sensory neurones from spinal cord combine in ___
nerve root
mixed nerve roots > mixed ___ > exit spinal collumn via ___
spinal nerve
IV foramen
spinal cord ends at ___ level => ___
L1
cauda equina
weakness, spasticity, increased tone and hyperreflexia are signs of a __
UMN lesion
weakness, flaccidity, decreased reflexes are signs of a ___
LMN lesion
2 pairs of nerve roots at each level in cauda equina =
exiting nerve root
traversing nerve root
in cauda equina exiting nerve root lies _____ and exits ___ of ___
outside thecal sac
under pedicle of corresponding vertebra
in cauda equina traversing nerve root lies ___ but ___ ( in __ recess) and becomes next levels ___
in thecal sac
anteriorly in lateral recess
exiting nerve root