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CNS/PNS > White Matter > Flashcards

White Matter Flashcards

1
Q

1a

A

Fasciculus gracilis

  • ascending and specific (lemniscal)
  • lower limbs and lower body trunk
  • discriminative touch, pressure, body sense
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2
Q

1b

A

Fasciculus cuneatus

  • ascending and specific (lemniscal)
  • upper limb and upper body trunk
  • discriminative touch, pressure, body sense
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3
Q

Both 1a + 1b make up the ____.

A

dorsal white column

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4
Q

2

A

posterior spinocerebellar tract

  • ascending spinocerebellar
  • subconscious propioception
  • ipsilateral upper limb and trunk
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5
Q

3

A

anterior spinocerebellar tract

  • ascending spinocerebellar
  • subconscious proprioception
  • ipsilateral lower limb and trunk
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6
Q

4

A

lateral spinothalamic tract

  • ascending and nonspecific (anterolateral)
  • pain + temperature (to opposite side of brain)
  • crude touch
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7
Q

5

A

anterior spinothalamic tract

  • ascending and nonspecific (anterolateral)
  • crude touch + pressure (to opposite side of brain)
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8
Q

6

A

anterior white commissure

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9
Q

7

A

medial reticulospinal tract

  • descending and indirect (extrapyramidal)
  • muscle tone and visceral motor functions
  • unskilled movements
  • maintain BALANCE
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10
Q

8

A

vestibulospinal tract

  • descending and indirect (extrapyramidal)
  • muscle tone and activation of ipsilateral limb and trunk EXTENSOR muscles
  • muscles that move the head
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11
Q

9

A

lateral reticulospinal tract

  • descending and indirect (extrapyramidal)
  • muscle tone and visceral motor functions
  • unskilled movements
  • maintain BALANCE
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12
Q

10

A

lateral corticospinal tract

  • descending and direct (pyramidal)
  • activates skeletal muscles
  • contralateral side of body
  • voluntary motor tract
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13
Q

11

A

anterior corticospinal tract

  • descending and direct (pyramidal)
  • same as lateral corticospinal tract
    • descending and direct (pyramidal)
    • activates skeletal muscles
    • contralateral side of body
    • voluntary motor tract
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14
Q

12

A

rubrospinal tract

  • descending and indirect (extrapyramidal)
  • muscle tone of ipsilateral distal limb muscles
  • vestigial functions in humans
  • CONTROL FLEXOR MUSCLES
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15
Q

13

A

tectospinal tract

  • descending and indirect (extrapyramidal)
  • EYE/HEAD MOVEMENT to visual target
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CNS/PNS (7 decks)

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