Neuro 2 pt1 Flashcards Preview

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Flashcards in Neuro 2 pt1 Deck (22)
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1
Q

Term “Pyramidal tract”= __ motor tract

begins in motor homunculus primary pathway for voluntary motor

A

corticospinal

2
Q

*___ supplies the leg,

___ supplies the arm

A

anterior cerebral artery

middle cerebral artery

3
Q

*UMN = starts at the

A

spinal cord

4
Q

Motor tract leaves through the __ root ganglion

A

ventral/anterior

5
Q

Extrapyramidal Symptoms mostly damage __ causing:

A

most damage basal ganglia, causing Parkinson-like movements or “dyskinesias”

6
Q

Myoclonus means

A

repetitive (same) contractions

7
Q

Athetosis means

A

random movements. Often seen with the mouth or the hand.

8
Q

What are the 2 main movements of Parkinson-like movements?

A

Myoclonus & Athetosis

9
Q

a patient has myoclonus & athetosis. These are ___ symptoms

A

Extrapyramidal symptoms

10
Q

Define:

Chorea, Ballismus, Athetosis

A

Chorea: dance-like
Ballismus: violent flinging
Athetosis: slow

11
Q

when you take the middle finger and you flip the nail, the thumb and pointer contract.
This is __ sign. What does it test for?

A

Hoffman’s sign.

nerve regeneration

12
Q

What’s the most anterior CN?

What’s the most inferior?

A

1

12

13
Q

Dz/disfunction of CNI

What can cause this?

A

Anosmia

olfactory groove meningiomas – tumor develops in same pathway as this nerve, so they lose this function.

14
Q

the optic nerve arises from ganglion cells in the ___ of the eye

A

Retina

15
Q

Like the CNS, optic n. damage is ___ unlike nerves from PNS

A

irreversible

16
Q

Cut left retina and you’ll have __ blindness.

A

monocular

17
Q

Tunnel vision/most central vision uses the most __vpart of the occipital lobe

A

posterior-most part

18
Q

Dz of CNII pathway

Damage to Optic nerve fibers at: (2 main locations)

A

retina, optic chiasm

19
Q

Dz of CNII
Tunnel vision & decr. visual acuity
the optic nerve fibers atrophy causing the optic cup to become larger

A

Glaucoma

20
Q

Define Papilledema

why does this happen?

A

high pressure in the brain afefcts the eye
High pressure in CSF space in brain will point out to the eye and cause damage, papilledema. You can recognize it without doing a CT scan of the head.

21
Q

temporary, complete monocular blindness that goes away

A

amaurosis fugax

22
Q

what is amaurosis fugax?

A

Temporary, but complete monocular blindness that goes away