Spinal Tracts Flashcards

1
Q

Which spinal tract is responsible for pain and temperature?

A

spinothalamic

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2
Q

Name the ascending tracts.

A

spinothalamic dorsal column medial lemniscus

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3
Q

Name the descending tract.

A

corticospinal

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4
Q

Which spinal tract is responsible for motor?

A

corticospinal

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5
Q

Which spinal tract is responsible for fine touch, vibration and proprioception??

A

dorsal column

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6
Q

Where is the first synapse of the dorsal column?

A

medulla - cuneate (above waist) and gracillus (below waist) nuclei

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7
Q

Where does the dorsal column decussate?

A

medulla

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8
Q

Where is the second synapse of the dorsal column?

A

ventroposterolateral nucleus in thalamus

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9
Q

Where does the dorsal column end up?

A

post central gyrus - sensory cortex

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10
Q

Where is the first synapse of the spinothalamic tract?

A

at spinal cord - one or two levels above entrance

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11
Q

Where does the spinothalamic tract decussate?

A

at level of spinal entrance

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12
Q

Where is the second synapse of the spinothalamic tract?

A

VPN of thalamus

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13
Q

Where does the spinothalamic tract end up?

A

post central gyrus - parietal lobe

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14
Q

Why do you get contralateral symptoms with a spinothalamic lesion?

A

as it decussates at level of spinal entrance

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15
Q

Where does the corticospinal tract decussate?

A

medulla

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16
Q

Where does the corticospinal tract synapse?

A

anterior horn

17
Q

What are the 3 pyramidal tracts?

A

tectospinal vestibulospinal rubrospinal

18
Q

What is the function of the tectospinal tract?

A

head movements in response to visual stimulus

19
Q

What is the function of the vestibulospinal tract?

A

innervates antigravity muscles

20
Q

What is the function of the rubrospinal tract?

A

movements pons - helps extensors medulla - helps flexors

21
Q

What is Brown Sequard syndrome?

A

cord hemisection ipsilateral paralysis ipsilateral loss of fine touch, proprioception and vibration contralateral loss of pain and temp

22
Q

What 2 spinal cord tracts do you get ipsilateral symptoms with? Why?

A

dorsal column corticospinal they decussate in the medulla

23
Q

Which spinal tract is in reddy pink?

A

corticospinal tract

24
Q

Which spinal tract is in blue?

A

spinothalamic

25
Q

Which spinal tract is in pink?

A

dorsal column