Neuro Kahoot 1 Flashcards
From where does the PNS originate embryologically?
Neural crest cells (aka neural plate transition zone)
T or F: myelination of nerves in the PNS is done by oligodendrocytes
False
it is done by Schwann cells
T or F: unlike the CNS, the PNS has no ability to regenerate.
False
What is the type of degeneration we see in PNS with traumatic injury?
Wallerian degeneration
what nerve/nerves are commonly traumatized during calving?
Obturator, ischiatic
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?
- brachial plexus avulsion (vehicular trauma)
- facial nerve paralysis in horses
- obturator nerve paralysis in cows (calving)
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
Roarer’s
T or F: the R recurrent laryngeal nerve is most commonly affected during Roarer’s
False
it’s the L
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
occurs in overo foals born to white parents
its the other way around
T or F: acquired Myasthenia Gravis is more common than congenital
true
T or F: Myasthenia gravis does not occur in cats
False
Some cases of Myasthenia gravis are associated with what tumor?
Thymoma
Which of the following is not a gross lesion you might see with Myasthenia Gravis?
megaesophagus
aspiration pneumonia
thymoma
diffuse skeletal muscle pallor
Diffuse skeletal muscle pallor
T or F: the cauda equina is considered part of the CNS
False
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
pain with elevation of the head
Deficiency in what vitamin can lead to blindness in calves and pigs?
Vitamin A
Which of the following is NOT a cause of flaccid paralysis?
Acute polyradiculoneuritis
botulism
tetanus
myasthenia gravis
tetanus
What is the mechanism of action for botulism?
acts at the neuromuscular junction, prevents release of acetylcholine
T or F: tetanus toxin enters the blood
false
T or F: shivers is only visible when moving backwards at a walk
True
What is the cell of origin for Tasmanian devil facial tumors?
Schwann cell
