spinal cord

Question 1

function

Answer 1

sensory and motor innervation for the entire body inferior to the head
-major reflex center

Question 2

what is the spinal cord protected by

Answer 2

bone
meninges
cerebrospinal fluid

Question 3

meninges

Answer 3

CT covering

Question 4

what are the 3 types of meninges coverings

Answer 4

1. dura mater: tough outer layer
2. arachnoid matter: thin, spider web like middle layer
3. pia matter: inner, layer, adheres directly to the spinal cord

Question 5

epidural space

Answer 5

common site for injecting anesthetics to numb the spinal cord and relieve pain in regions inferioir to injection site.
-between body wall and dura mater

Question 6

subdural space

Answer 6

a small area that can potentially fill with fluid or blood due to injury
-between dura mater and arachnoid

Question 7

subarachnoid space

Answer 7

filled with cerebrospinal fluid, also contains blood vessels
-between arachnoid and pia
-not safe for anesthetics

Question 8

cervical and lumbar enlargements

Answer 8

sires where nerves for the upper and lower limbs form

Question 9

conus medullaris

Answer 9

inferior tapered end of the spinal cord

Question 10

filum terminale

Answer 10

long filament of CT tissue, attaches to the coccyx inferioirly and anchors the spinal cord in place

Question 11

cauda equina

Answer 11

collection of lumbar and sacral roots, 5 inch space. allow sample of CSF to be collected

Question 12

where does the spinal cord terminate

Answer 12

into the conus medullaris
-L1 or L2

Question 13

where does the dura mater end

Answer 13

dont end until S2. leaves 5 inches between cord and sac