U2 day 3

Question 1

Spinal cord ends

Answer 1

begins foramen magnum, ends at sacrum

Question 2

rule of 1s

Answer 2

where spinal cord doesn’t alien with the spinal bones of the vertebral column

Question 3

Lateral Horn

Answer 3

present T1-L2, it is intermedial lateral cell column

Question 4

Lower motor neurons

Answer 4

Only way to innervate target organ, “final common pathway” comes from ventral horn

Question 5

White matter

Answer 5

myelin fat lines the cord (white looking) this makes messages travel faster

Question 6

Long ascending processes

Answer 6

Sensory intake, takes information to brain stem, thalamus, and cerebellum.

Question 7

Long Descending process

Answer 7

Motor neurons, upper motor neurons, originate in cerebellum and brain stem

Question 8

Propriospinal fibers

Answer 8

remain in spinal cord, connects levels and sides of the spinal cord

Question 9

Pia Mater

Answer 9

meninge layer, vasculature layer, sits directly on spinal cord with no space in between.

Question 10

Conus megularis

Answer 10

end cone shape of spinal cord at boney level L2

Question 11

Filum Termnile

Answer 11

anchors cord inferiorly, extension of pia mater. not nervous tissue

Question 12

Denticulate ligaments

Answer 12

anchoring from cord to dura mater laterally

Question 13

Arachnoid

Answer 13

superficial to pia mater, deep to dura mater

Question 14

subarachnoid space

Answer 14

real space deep to the arachnoid, houses cerebral spinal fluid

Question 15

Dura Mater

Answer 15

Very thick, final layer surrounding cord, most superficial

Question 16

subdural space

Answer 16

potential space, between dura mater and arachnoid

Question 17

epideral space

Answer 17

Real space, has fat, vasculature, and water

Question 18

lumbar cistern

Answer 18

area posterior to conus medularis, where cauda equina is and lots of CSF