Neuro 2 pt1

Question 1

Term “Pyramidal tract”= __ motor tract

begins in motor homunculus primary pathway for voluntary motor

Answer 1

corticospinal

Question 2

*___ supplies the leg,

___ supplies the arm

Answer 2

anterior cerebral artery

middle cerebral artery

Question 3

*UMN = starts at the

Answer 3

spinal cord

Question 4

Motor tract leaves through the __ root ganglion

Answer 4

ventral/anterior

Question 5

Extrapyramidal Symptoms mostly damage __ causing:

Answer 5

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

Question 6

Myoclonus means

Answer 6

repetitive (same) contractions

Question 7

Athetosis means

Answer 7

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

Question 8

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

Answer 8

Myoclonus & Athetosis

Question 9

a patient has myoclonus & athetosis. These are ___ symptoms

Answer 9

Extrapyramidal symptoms

Question 10

Define:

Chorea, Ballismus, Athetosis

Answer 10

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

Question 11

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

Answer 11

Hoffman’s sign.

nerve regeneration

Question 12

What’s the most anterior CN?

What’s the most inferior?

Answer 12

1

12

Question 13

Dz/disfunction of CNI

What can cause this?

Answer 13

Anosmia

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

Question 14

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

Answer 14

Retina

Question 15

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

Answer 15

irreversible

Question 16

Cut left retina and you’ll have __ blindness.

Answer 16

monocular

Question 17

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

Answer 17

posterior-most part

Question 18

Dz of CNII pathway

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

Answer 18

retina, optic chiasm

Question 19

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

Answer 19

Glaucoma

Question 20

Define Papilledema

why does this happen?

Answer 20

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.

Question 21

temporary, complete monocular blindness that goes away

Answer 21

amaurosis fugax

Question 22

what is amaurosis fugax?

Answer 22

Temporary, but complete monocular blindness that goes away