6.0.10 Central Nervous System Lab - Spinal Cord

Front 1

dura mater is the ____ and ____ of the 3 meninges covering brain & spinal cord

Back 1

outermost - toughest

Front 2

arachnoid membrane is deep to the ____ & is the ____ layer of the meninges

Back 2

dura - middle

Front 3

arachnoid membrane has web-like extensions down to the ____ ____ below

Back 3

pia mater

Front 4

pia mater is the ____ layer and adheres to the ____ & ____ ____

Back 4

innermost - brain - spinal cord

Front 5

pia mater follows the ____ of the brain and is very ____

Back 5

folds - vascular

Front 6

epidural space is the area between bony ____ & ____ ____ of spinal cord

Back 6

vertebrae - dura mater

Front 7

epidural space contains

Back 7

fat

Front 8

subarachnoid space is the area between ____ & ____ ____ and is filled with ____ ____

Back 8

arachnoid - pia mater - csf

Front 9

denticulate ligaments are saw-toothed shelves of ____ ____

Back 9

pia mater

Front 10

denticulate ligaments are extensions of ____ ____ that anchor

Back 10

pia mater - spinal cord to inside of vertebrae

Front 11

2 depressions of the spinal cord

Back 11

anterior median fissure - posterior median sulcus

Front 12

3 gray areas of the spinal cord

Back 12

anterior - posterior - lateral gray horn

Front 13

anterior gray horn has ____ anterior projections of ____ ____

Back 13

2 - gray matter

Front 14

anterior gray horn contains

Back 14

cell bodies of large alpha motor neurons

Front 15

posterior gray horn is where the incoming ____ sensory neurons enter the synapse with ____ neurons

Back 15

unipolar - association

Front 16

lateral gray horn is only visible from

Back 16

T1 - L2

Front 17

lateral gray horn contain ____ neuron cell bodies

Back 17

autonomic

Front 18

3 white areas of spinal cord

Back 18

anterior - posterior - lateral white column or funiculi

Front 19

each funiculus contains several fiber ____ made up of ____

Back 19

tracts - axons

Front 20

central canal contains

Back 20

csf

Front 21

there are ____ pairs of spinal nerves

Back 21

31

Front 22

dorsal root ganglion are cell bodies of

Back 22

afferent neurons

Front 23

axons enter the spinal cord through the

Back 23

dorsal root ganglion

Front 24

sensory (afferent) root are ____ that carry impulses from ____ sensory receptors

Back 24

fibers - peripheral

Front 25

sensory (afferent) root enter spinal cord through the

Back 25

dorsal roots

Front 26

motor (efferent) root carries axons to ____ ____ through the ____ root

Back 26

skeletal muscle - ventral root

Front 27

together, the dura mater, pia mater, & arachnoid membrane are the

Back 27

meninges

Front 28

a fissure is a

Back 28

deep valley or crevice

Front 29

a sulcus is a

Back 29

shallow crevice

Front 30

anterior gray horn contains

Back 30

alpha motor neurons

Front 31

gray horn contains

Back 31

cell bodies of neurons

Front 32

white columns contain

Back 32

myelinated axons

Front 33

central canal is lined by

Back 33

ependymal cells

Front 34

subarachnoid space contains

Back 34

cerebrospinal fluid

Front 35

functionally, a spinal nerve is an example of a

Back 35

mixed nerve

Front 36

white columns carry impulses along pathways called

Back 36

tracts

Front 37

info carried along tracts are either ____ sensory or ____ motor

Back 37

ascending - descending

Front 38

neuronal synapses would be most common in

Back 38

gray matter

Front 39

oligodendrocytes would be found in the

Back 39

white columns

Front 40

a lumbar puncture would remove fluid from what space

Back 40

subarachnoid

Front 41

do all sections have gray horns

Back 41

yes

Front 42

all sections have anterior & posterior gray horns, but not all have

Back 42

lateral horns

Front 43

where are lateral gray horns located

Back 43

T1 - L2 only

Front 44

lateral gray horns are ____ motor neurons

Back 44

visceral

Front 45

do all the sections have the same gray horn

Back 45

no

Front 46

S2 - S4 have small

Back 46

lateral gray horns

Front 47

anterior gray horns are larger in ____ & ____ regions

Back 47

cervical - lumbar

Front 48

gray areas on the right & left are connected by ____ ____ which contains the ____ ____

Back 48

gray commissure - central canal

Front 49

filum terminale is extension of ____ ____ fastening the end of the ____ ____ to the ____ bone

Back 49

pia mater - spinal cord - coccyx

Front 50

how far down the vertebral column does the spinal cord extend

Back 50

L1

Front 51

cauda equina are ____ ____ descending from lower end of the spinal cord before exiting the ____

Back 51

spinal nerves - vertebrae