Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

BRAIN BATTACK > CH13: Ocular Movement and Pupillary Function > Flashcards

CH13: Ocular Movement and Pupillary Function Flashcards

You may prefer our related Brainscape-certified flashcards:
The Brain flashcards
1
Q

Quick eye movements whose peak velocity may exceed 700 degrees per second (p. 273)

A

saccades

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Interval between the appearance of a target and the initiation of a saccade (p. 273)

A

200ms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

slower and smoother pursuit movements stabilizing the image of an object that is mocing (p. 274)

A

pursuit

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

saccades initiation localization (p. 273)

A

Area 8 of the forntal lobe

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

pursuit localization (p. 274)

A

ipsilateral parietooccipital cortex

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

bundle of saccades fibers (p. 274)

A

capsular peduncular bundle and transthalamic bundle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

three integrated structures for vertical gaze (p. 276)

A

riMLF, INC, nucleus and fibers of PC

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

ocular apraxia of childhood (p. 277)

A

Cogan syndrome

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

T/F pontine gaze palsies tend to be longer lasting than those of cerebral origin (p. 278)

A

TRUE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Percent of adult not demosntrating Bell’s phenomenon (p. 279)

A

15%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

eye is lower or higher: lateral medullary infarction (p. 280)

A

LOWER

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

eye is lower or higher: MLF or INC (p. 280)

A

HIGHER

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Vergence movements are under the control of medial rectus neurons, unpaired. (p. 280)

A

Nucleus of Perlia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

muscle imbalance that results in misalignment of the visual axes (p. 282)

A

Strabismus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Normal slight exotropia of neonates are corrected by what age (p. 283)

A

3 months of age

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Compensatory head tilting to the opposite shoulder brought by a CNIV lesion (p. 284)

A

Bielschowsky sign

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Sixth nerve palsy from DM is ususally painful at the onset (p. 287)

A

TRUE

18
Q

mitochondrial defect in mendelian inheritance pattern occurs with POLG1 and twinke gene mutations (p. 289)

A

Progressive External Ophthalmoplegia

19
Q

Law stating vestibular nystagmus of peripheral origin beats in most cases away from the side of the lsion and increases as the eyes are turned in the direction of the quick phase (p. 292)

A

Alexander Law

20
Q

T/F in brainstem and cerebellar origin, nystagmus changes according to the direction of the gaze (p. 292)

A

TRUE

21
Q

A type of nystagmus described as course and bilateral horizontal with an amplitude higher to the side of the lesion (p. 293)

A

Brun’s nystagmus

22
Q

A type of pendular nystagmus accompanied by head nodding, and occasionaly by wry positions of the neck (p. 293)

A

Spasmus mutans

23
Q

Eye movements that are continuous and chaotic, without an intersaccadic pause (p. 294)

A

Opsoclonus

24
Q

Intermittent bursts of very rapid horizontal oscillations around the point of fixation (p. 294)

A

Ocular flutter

25
Q

normal number of blinking per minute (p. 295)

A

12- 20 times per minute

26
Q

Blepharospasm with dystonic grimacing movements of the lower face (p. 295)

A

Meige syndrome

27
Q

Patient continues to blink with each tap on the forehead or glabella (p. 295)

A

Myerson sign

28
Q

Aberrant regeneration of the third nerve after an injury wherein the upper lid retracts on lateral or downward gaze (p. 295)

A

pseudo von Graefe sign

29
Q

Retraction of the upper lids with a staring expression (p. 296)

A

Collier sign

30
Q

Delayed relaxation of the eyelid on attempted downgaze (p. 296)

A

von Graefe sign

31
Q

rapid flactuation in pupillary size common in metabolic encephalopathy (p. 297)

A

Hippus

32
Q

MGP vs hippus

A

In MGP, initial movements are in dilation (p. 297)

33
Q

How to localize the lesion of the sympathetic chain based on sweat (p. 297)

A

CCA: loss of sweating entire side of face

34
Q

How to localize the lesion of the sympathetic chain based on sweat (p. 297)

A

Distal: no or just in the medial

35
Q

Afferent arm of the ciliospinal pupillary reflex (p. 298)

A

C2, C3

36
Q

Characteristic of Adie- Tonic Pupil (p. 299)

A

Once constricted, tends to remain tonically constricted and redilates very slowly

37
Q

Adie- tonic pupil is unusally sensitive tothis drug (p. 299)

A

Pilocarpine 0.1 %

38
Q

Absence of knee or anke jerks + Adie’s pupil (p. 299)

A

Holmes- Adie Syndrome

39
Q

Percent of people with inequality of 0.3 to 0.5 mm or more in pupilary diameter (p 299)

A

20%

40
Q

light exaggeraes anisocoria caused by third nerve, darkness accentuates anisocira in case of Horner syndrome (p. 299)

A

TRUE

41
Q

this drug causes reversal of miosis on affected side of Horner syndrome (p. 300)

A

Apraclonidine

BRAIN BATTACK (39 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions