Neuro Kahoot 1 Flashcards

1
Q

From where does the PNS originate embryologically?

A

Neural crest cells (aka neural plate transition zone)

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2
Q

T or F: myelination of nerves in the PNS is done by oligodendrocytes

A

False
it is done by Schwann cells

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3
Q

T or F: unlike the CNS, the PNS has no ability to regenerate.

A

False

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4
Q

What is the type of degeneration we see in PNS with traumatic injury?

A

Wallerian degeneration

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5
Q

what nerve/nerves are commonly traumatized during calving?

A

Obturator, ischiatic

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6
Q

not kahoot question but something that I didn’t add in the other flashcards

what are 3 common examples of PNS trauma in vet med?

A
  1. brachial plexus avulsion (vehicular trauma)
  2. facial nerve paralysis in horses
  3. obturator nerve paralysis in cows (calving)
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7
Q

Which of the following is not a common cause of facial nerve paralysis in horses?

guttural pouch infection
anesthesia wearing a halter
Roarer’s
temporohyoid osteoarthropathy

A

Roarer’s

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8
Q

T or F: the R recurrent laryngeal nerve is most commonly affected during Roarer’s

A

False
it’s the L

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9
Q

which of the following is not a feature of lethal white foal syndrome?

occurs in overo foals born to white parents
realist in function obstruction of GIT
foals die w/I a few days of birth
there is lack of myenteric and submucosal ganglia

A

occurs in overo foals born to white parents

its the other way around

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10
Q

T or F: acquired Myasthenia Gravis is more common than congenital

A

true

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11
Q

T or F: Myasthenia gravis does not occur in cats

A

False

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12
Q

Some cases of Myasthenia gravis are associated with what tumor?

A

Thymoma

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13
Q

Which of the following is not a gross lesion you might see with Myasthenia Gravis?

megaesophagus
aspiration pneumonia
thymoma
diffuse skeletal muscle pallor

A

Diffuse skeletal muscle pallor

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14
Q

T or F: the cauda equina is considered part of the CNS

A

False

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15
Q

Which of the following is not a feature of equine causa equina syndrome?

granulomatous inflammation and fibrosis in the cauda equina
pain with elevation of the head
fecal retention and colic
rear limb weakness

A

pain with elevation of the head

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16
Q

Deficiency in what vitamin can lead to blindness in calves and pigs?

A

Vitamin A

17
Q

Which of the following is NOT a cause of flaccid paralysis?

Acute polyradiculoneuritis
botulism
tetanus
myasthenia gravis

A

tetanus

18
Q

What is the mechanism of action for botulism?

A

acts at the neuromuscular junction, prevents release of acetylcholine

19
Q

T or F: tetanus toxin enters the blood

A

false

20
Q

T or F: shivers is only visible when moving backwards at a walk

A

True

21
Q

What is the cell of origin for Tasmanian devil facial tumors?

A

Schwann cell