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Neurology System > Pathways Condensed > Flashcards

Pathways Condensed Flashcards

1
Q

What does dorsal column carry information about?

A

Sensory information
Fine touch
proprioception
Vibration

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2
Q

What are the 2 parts of the dorsal columns

A

Fasciculis gracilis

Fasciculis cuneatus

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3
Q

Where does the fasciculis gracilis give info from

A

low limbs

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4
Q

Where does the fasciculis cuneatus give info from?

A

Upper lumbs

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5
Q

What does the lateral spinothalamic tract detect?

A

Pain

Temp

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6
Q

What does the anterior spinthalamic tract detect

A

Crude touch

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7
Q

Where does the dorsal column decussa?

A

Medulla oblongata

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8
Q

Where does the lateral and anterior spinothalamic tract decussate?

A

At level of spinal cord

Spinal cord entry

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9
Q

What are the 2 corticospinal tracts?

A

Lateral and anterior

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10
Q

Where do CST decussate?

A

At medulla oblongata

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11
Q

Why are CST pyramidal tracts?

A

Cause they pas through pyramids in medulla

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12
Q

Which side to CST carry info to?

A

Contralateral

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13
Q

Where do CST arise from?

A

motor cortex

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14
Q

What do CST control generally?

A

Voluntary muscle movements

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15
Q

What does lateral CST control?

A

Voluntary distal limb movement

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16
Q

What does anterior CST control?

A

Voluntary axial limb movement

17
Q

Where does rubrospinal tract originate?

A

Red nucleus of midbrain

18
Q

What does RBS control?

A

Voluntary control of muscles

19
Q

What happens if CST is lesioned?

A

RBS can resume all normal functions of CST

20
Q

Where does RST decussate?

A

Ventral tegmental decussation

21
Q

What are the ventromedial pathways?

A

Tectospinal
Vestibulospinal
Reticulospinal

22
Q

Where does tectospinal tract originate?

A

Superior colliculus

23
Q

Does tectospinal tract decussate?

A

Yes

24
Q

Function of tectospinal tract?

A

Mediate reflex movements in repsonse to visual stimuli

25
Q

Where does tectospinal mainly terminate?

A

Cervical spinal cord

26
Q

Where does vestibulospinal tract originate?

A

Vestibular nuclei

of pons and medulla

27
Q

Does vestibulospinal tract decussate?

A

No

28
Q

What does vestibulospinal tract control?

A

Control of extensor motor neurons to maintain posture

Based on head and bony labrynth movement

29
Q

2 types of reticulospinal tracts

A

Pontine

Medullary

30
Q

Where does medullary reticulospinal tract originate?

A

Reticular formation

Medulla

31
Q

Where does pontine reticulospinal tract originate?

A

Reticular formation

Pons

32
Q

What do reticulospinal tracts involve?

A

Reflexes
Muscle tone
Also involved in breathing and circulatory system

Neurology System (35 decks)

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