Organization of Spinal Cord

Question 1

where is cervical enlargement located

Answer 1

C5-T1

Question 2

where is lumbosacral enlargement

Answer 2

L2-S3

Question 3

filum terminale

Answer 3

continuation of spinal cord from L2 - S2/3

Question 4

where do dura and pia mater attach

Answer 4

S2-3

Question 5

where do you do a lumba rpunction

Answer 5

L3/L4

Question 6

where does cervical spinal n 8 exit

Answer 6

below cervical vertebra C7

Question 7

spinal nerve

Answer 7

dorsal + ventral root

Question 8

what does gray matter contain

Answer 8

neuron cell bodies

Question 9

what is white matter arranged into

Answer 9

tracts, fasciculi, or commissures

Question 10

what are tracts, fasciculi or commissures

Answer 10

collection of myelinated axons with similar functions and similar origin and termination

Question 11

commissures

Answer 11

tracts/fasciculi that cross from side of the spinal cord to the other

Question 12

whre is most of the white matter

Answer 12

cerival region

Question 13

where is most gray matter

Answer 13

cervical adn lumbar enlargements

Question 14

what are the 3 main regions of gray matter

Answer 14

dorsal
ventral
lateral horns

Question 15

what are the 3 main lamina of gray matter

Answer 15

substantia gelatinosa, nucleus proprius, motor nuclie

Question 16

what are teh 3 mian columns of gray matter

Answer 16

intermediolateral cell colum
clark’s column
sacral parasympathetic nuclus

Question 17

dorsal horn function

Answer 17

sensory input

Question 18

what does dorsal horn contain

Answer 18

central processes of pseudounipolar neurons whose cell body is in dorsal root ganglia

Question 19

function of ventral horn

Answer 19

motor output

Question 20

what does ventral horn contain

Answer 20

cell bodies of motor neurons whose axons innervate skeletal muscle

Question 21

function of lateral horn

Answer 21

preganglionic sympahtics

Question 22

what does lateral horn contain

Answer 22

preganglionic sympathetic cell bodies

Question 23

function of interneurons

Answer 23

synapse with motor neuron cell bodies in ventral horn

Question 24

lateral motor aons innervate what

Answer 24

limbs

Question 25

medial motor axons innervate what

Answer 25

axial skeleton

Question 26

tract cells

Answer 26

give off processes

Question 27

anterior exons

Answer 27

extensors

Question 28

posterior ansons

Answer 28

flexons

Question 29

substantia gelatinosa (II) function

Answer 29

modulate nociception

Question 30

nucleus proprius (IV, V, VI)

Answer 30

synapse of cell bodies of second order neurons of spinothalamic tract

Question 31

motor nuclei (IX)

Answer 31

motor neurons whose axons innervate skeletal muscle

Question 32

where is nucleus dorsalis (clarke's column) located

Answer 32

C8-L3

Question 33

what is in clarke's colum

Answer 33

cell bodies of dorsal spinocerebellar tract

Question 34

where is lateral horn located

Answer 34

T1-L2(30

Question 35

WHAT DOES LATERAL HORN CONTAIN

Answer 35

PREGANGLIONIC CELL BODIES OF SYMPATHETIC NEURONS

Question 36

WHERE IS SACRAL PARASYMPATHIETC NUCLEUS LOCATED

Answer 36

s2-4

Question 37

what does sacral parasympathetic nucleius contain

Answer 37

preganglionic parasympathetic neuron cell bodies

Question 38

what are teh 3 major columns of the spinal cord

Answer 38

dorsal lateral and bentral funiculus

Question 39

function of dorsal funiculus

Answer 39

proproception, virbratory sense, crude touch

Question 40

what is the dorsal funiculus arranged itno

Answer 40

fasciculus cuneatus, facsiculus graclisis

Question 41

where is fasciculus cuneatus located

Answer 41

C1-T6

Question 42

what does fasciculus cuneatus get input from

Answer 42

upper trunk and upper limb

Question 43

where is fasciculus gracilis located

Answer 43

all spinal cord levels

Question 44

where does fasciuclus gracilis get input from

Answer 44

lower trunk and lower limb

Question 45

where does fasciuclus gracilis get input from

Answer 45

lower trunk and lower limb

Question 46

where is lateral funiculus prominante

Answer 46

cerbial levels

Question 47

where does alteral funiculus originate and terminate

Answer 47

o-cortex | t- spinal cord

Question 48

function of lateral funiculus

Answer 48

motor

Question 49

ventral spinocerebellar tract

Answer 49

ascneding tract o - spinal cord t- cerebellum

Question 50

functino of ventral spinocerebellar tract

Answer 50

sensory info from extremies to cerebellum for position

Question 51

dorsal spinocerebellar tract

Answer 51

ascending tract o - spinal cord t- cerebellum

Question 52

function of dorsal spinocerebellar tract

Answer 52

position sense

Question 53

spinothalamic tract

Answer 53

ascending tract o - spinal cord t-thalamus

Question 54

function of spinothalamic tact

Answer 54

pain, temp, touch

Question 55

what does spinothalamic tract arise from

Answer 55

nucleus propiuse

Question 56

what does spinothalamic tract ascend into

Answer 56

ventrolateral funiculus

Question 57

anterior corticospinal tract

Answer 57

descending

Question 58

function of anterior corticospinal tract

Answer 58

motor

Question 59

dorsolateral tract of lissaeuer

Answer 59

connection between spinal cord surface and tip of dorsal horn

Question 60

what does dorsolateral tract of lisaure contain

Answer 60

central processes of sensory pseudounifpolar nueonrs

Question 61

anterior white commissure

Answer 61

ttract that cross spinal cord

Question 62

where is teh least white matter found

Answer 62

LS region

Question 63

what type of inenrvatino do pseudounipolar neurons get

Answer 63

sensory afferent

Question 64

what do pseudounipolar neurons synpatse with

Answer 64

interneurons or preganglionic sympahtetic neurons

Question 65

what do interneurons synpase with

Answer 65

motor nuclei in ventral horn motor nucli

Question 66

what type of innervation do motor neuron get

Answer 66

effect motor innervation

Question 67

what type of innervation do motor neuron get

Answer 67

efferent motor innervation