Sos- Motor Spinal Cord Flashcards
how many cervical vertebrae and how many cervical nerves
7 vertebrae
8 nerves
how many thoracic vertebrae and nerves
12
how many lumbar vertebrae and nerves
5
how many sacral vertebrae and nerves
5
how many coccyx vertebrae and nerves
1
spinal disease at or below L2 does not produce _______, only ________
doesn’t produce myelopathy (bilateral)
does produce radiculopathy (unilateral)
color of spinal cord and subarachnoid space
black
white
top R
middle R
cauda equina
conus medullaris
why do cervical and lumbar have wider diameter vertebrae than thoracic
cervical deals with upper extremities
lumbar deals with lower extremities
end of spinal cord
L1-L2 (conus medullaris)
____ mater anchors spinal cord caudally as filum terminale
pia mater
where to do lumbar puncture (spinal tap)
L3-L5
spinal cord vs brain white and gray matter orientation
brain: gray on periphery; white in middle
spinal cord: white on periphery; gray in middle
what roots form spinal n
ventral and dorsal roots
_____ enlargement—arms and legs
“wide bunny”
C8 (cervical enlargement—arms and legs)
“skinny butterfly”
T2 (thoracic)
_____ horn present from T1-L2 (sympathetics)
lateral horn
____ enlargement (legs)
lumbar enlargement
two L lines
C1
C2 body (can see dens)
atlas (ring); secured to base of skull; moves with the head
C1
axis (has the dens that sticks straight up) head rotates around this; dens in anterior location
C2
pick out C7
spinous process sticks out (is palpable)
L5?
at the bend just before the sacrum
do you worry about puncturing nerve during spinal tap b/t L3-L5?
no, they will roll around like noodles in boiling water