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T3 Systems :( > Spinal Cord Injuries Class 1 > Flashcards

Spinal Cord Injuries Class 1 Flashcards

1
Q

the spinal cord ends at ___/____

A

L1/L2

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2
Q

L1/L2 aka _____ ______

A

conus medullaris

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3
Q

T/F the cauda equina is NOT considered part of the spinal cord

A

true

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4
Q

T/F there are 8 cervical spinal nerves but only 7 cervical vertebrae

A

true

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5
Q

efferent neurons send axons into the ____ ____

A

ventral roots

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6
Q

projection fibres send axons into ______ _____ matter to travel to the brain

A

spinal white

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7
Q

axons form tracts associated with _______ spinal pathways

A

ascending

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8
Q

interneurons: the axons remain in the _____ _____ matter to determine _____ _____ of the spinal cord

A

spinal grey, reflex responses

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9
Q

T/F ascending pathways normally start with “spino”

A

true

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10
Q

cutaneous receptors, proprioceptors, and visceral receptors throughout most of the body received _____ _____ information such as pain`

A

sensory afferent

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11
Q

the anterior spinothalamic tract is an _______ tract

A

ascending

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12
Q

the signals transmitted via the anterior thalamic tract is considered ______ or non discriminative touch

A

crude

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13
Q

the anterior thalamic tract is located within the anterior ____ _____ within the spinal cord

A

white matter

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14
Q

the anterior thalamic tract ascends ________

A

contralaterally

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15
Q

in terms of decussation, where/when does the anterior spinothalamic tract decussate

A

immediately upon entry into the SC

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16
Q

the ______ spinothalamic tract senses pain and temperature

A

lateral

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17
Q

the lateral spinothalamic tract is located in the lateral ______ ________ within the spinal cord

A

white matter

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18
Q

the lateral spinothalamic tract ascends _________

A

contralaterally

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19
Q

the lateral spinothalamic tract decussates ______ upon entry into the spinal cord

A

immediately

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20
Q

the _____ columns transmit discriminative touch and are located in the dorsal white matter

A

dorsal

21
Q

the dorsal columns ascend _______

A

ipsilaterally

22
Q

the dorsal columns decussate in the ______ (medulla)

A

brainstem

23
Q

the ______cerebellar tract transmits unconscious proprioception and is located in the lateral ______ ______

A

spinocerebellar, white matter

24
Q

the spinocerebellar tract ascends ________

A

ipsilaterally

25
Q

T/F the spinocerebellar tract does not decussate

A

true

26
Q

in the lower body, conscious proprioception and vibration travel via the ______ ______

A

fasciculus gracilis

27
Q

in the upper body, conscious proprioception and vibration travel via the ______ _______

A

fasciculus cutaneous

28
Q

2 tracts in the anterolateral system include the ________spinothalamic & _______ spinothalamic tract

A

anterior, lateral

29
Q

T/F both the anterior and lateral spinothalamic tracts are 3 neuron pathways

A

true

30
Q

the ___________ tract aka “double crosser” usually crosses ipsilaterally however 10% of the time it can cross contralateral

A

spinocerebellar

31
Q

T/F the spinocerebellar tract has a 3rd order neuron

A

false

32
Q

the corticospinal (pyramidal) pathway is a ______ pathway

A

descending

33
Q

the signal produced by the corticospinal tract is ________ skeletal muscle

A

voluntary

34
Q

the cortiocospinal tract is ___% in the lateral white matter and ___% in the anterior white matter

A

80%, 20%

35
Q

T/F the cortiocspinal descends ipsilaterally & contralaterally

A

true

36
Q

the corticospinal tract decussates in the _______ @ _____ level

A

brainstem, @ spinal level

37
Q

the extra-pyramidal tract is in charge of _______ skeletal muscle

A

involuntary

38
Q

T/F the extrapyramidal tract dampens erratic movements and maintains muscle tone

A

true

39
Q

the extrapyramidal tract desecnds ______

A

ipsilaterally

40
Q

the extrapyramidal tract is located in the lateral _____ ____

A

white matter

41
Q

the extrapyramidal tract decussates at ______ level

A

spinal

42
Q

T/F all corticospinal tracts first order neurons synapse in the lateral grey horn of the spinal cord with lower motor neurons

A

false, anterior

43
Q

the _________ tract is in charge of controlling limb flexor muscles

A

rubrospinal

44
Q

the _________ tract is in charge of reflex responses to visual input

A

tectospinal

45
Q

the _______ tract is in charge of mediating excitation of limb extensors

A

vestibulospinal

46
Q

the _______ tract controls reflex activities and muscle tone/ vital functions

A

reticulospinal

47
Q

the ________ tract conveys information from cutaneous/ proprioceptive organs

A

olivospinal

48
Q

T/F there are no descending tracts from the cerebellum - as it has an indirect effect on motor activity

A

true

T3 Systems :( (12 decks)

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