Spinal Anesthesia Flashcards
(102 cards)
How many vertebrae are there? How many in each section?
33 total
7 Cervical
12 thoracic
5 lumbar
5 sacral
4 coccygeal
how many facet joints between each vertebrae? and What kind of joints are they?
2, synovial joints
Another name for C1?
Atlas
another name for C2?
axis
motion of atlanto-axial joint?
side to side movement
Are facet joints a synovial filled cavity?
yes
where do spinal nerves exit?
from intervertebral foramen and sacral foramen
Adult spinal cord runs from what to what?
foramen magnum to L1-L2
where does spinal cord end in child?
L3
how many spinal nerves?
31 pairs
do bulbous portions of the spinal cord have more gray or white matter?
gray matter
where is cervical enlargment?
C1-C4
where is lumbar enlargement?
L2-S3
what is cervical enlargement responsible for?
anterior motor, upper limb muscles
what is lumbar enlargement responsible for?
lower limb muscles
Pia mater
thin delicate vascular membrane that covers the spinal cord.
how far lateral does pia mater go?
as far as intervertebral foramen
does the pia mater have projections that connect it to the arachnoid mater and dura mater?
yes
is arachnoid mater vascular?
no
where does subarachnoid space/arachoid mater end?
filum terminale
what structure does the duramater become continuous with?
epinerium as it passes through intervertebral foramen
when do you feel a pop with the spinal needle?
when it passes through the dura mater
where is the subdural space?
potential space between duramater and arachnoid mater
what can happen with injection into subdural space?
delayed block for 10-25min
also risk of VERY DANGEROUS high block