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Neuro > Neuro Tracts > Flashcards

Neuro Tracts Flashcards

1
Q

What is another name for the anterolateral system ?

A

Spinothalamic tract

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2
Q

What is another name for the medial lemniscial tract?

A

Dorsal column

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3
Q

What does the medial lemniscial tract transmit?

A

Fine touch, proprioception, vibration, and pressure

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4
Q

What is the corticospinal tract?

A

Transmits motor impulses

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5
Q

What is the Lissauer tract?

A

Intermediary pathway that relays sensory input in the spinal cord

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6
Q

What is gray matter? how many subdivisions? How are they broken down?

A

10

1-6 are sensory

7-9 are motor

10 is a crossover area

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7
Q

Where do sensory neurons enter through?

A

Dorsal root

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8
Q

Where do motor neurons exit through?

A

Ventral root

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9
Q

What is the dorsal system? Another name?

A

Medial lemniscal system

Transmits mechanoreceptive sensations

Touch, vibration, proprioception, and pressure

Two point discrimination

Large, myelinated

More advanced

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10
Q

Where does the dorsal system crossover?

A

Second order neuron in the medulla

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11
Q
A
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12
Q

What do Meissner’s corpuscles do?

A

Two point discrimination and vibration

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13
Q

What do Pacinian corpuscles do?

A

Vibration

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14
Q

What do Merkel’s discs do?

A

Continuous touch

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15
Q

What do Ruffini’s endings do?

A

Proprioception and prolonged touch and pressure

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16
Q

What is the anterolateral system ? Another name?

A

Spinothalamic tract

Sensory

Pain, crude touch, tickle, itch, sex

Small, slow conducting fibers

No two point

17
Q

What is the corticospinal tract do?

A

Motor pathway

18
Q

What do SSEPs monitor?

A

Dorsal column (Posterior arteries)

19
Q

What do MEPs monitor?

A

Corticospinal tract (Anterior artery)

20
Q

Which pathway is the tract of Lissauer apart of?

A

Spinothalamic tract

21
Q

Which mechanoreceptor allows blind people to read brail?

A

Meissner’s corpuscles (two point)

22
Q

What tract are mechanoreceptors apart of?

A
23
Q

What tract transmits pain?

A

Spinothalamic

24
Q

Primary treatment for neurogenic shock?

A

Intravascular expansion with norepinephrine

Norepi

remove stimulus?

25
Q

What is preserved if the anterior spinal artery is clamped?

A

Touch and proprioception

26
Q

What tract is perfused by anterior blood supply?

A

Corticospinal tract

and

Autonomic

and

Spinothalamic

27
Q

What tract is perfused by posterior supply?

A

Dorsal column

28
Q

What tract does Babinski test for?

A

Corticospinal

Neuro (7 decks)

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