Brainscape's Knowledge GenomeTM

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


See full index

Neuroscience exam 3 > Visual Motor > Flashcards

Visual Motor Flashcards

1
Q

CN III muscles

A

inferior , medial & superior rectus

inferior oblique

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

CN IV muscles

A

super oblique

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

CN VI muscles

A

lateral rectus

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

CN III supplies efferents to

A

ciliary body = lens accommodation

sphincter pupillae

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

Edinger-Westphal Nu

A

parasympathetic to lens (accomodation)

Pupil (constriction/miosis)

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

Lesion to oculomotor CN

A

inability to look down & inward

partial loss of elevation of eyelid

loss of parasympathetics

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

Lesion to Trochlear CN

A

ipsilateral (SO)

cannot rotate eye down once it is rotated in

“High eye”

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

Lesion to Abducens CN

A

ipsilateral (LR)

cannot look outwards

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

horizontal gaze center

A

Paramedian Pontine Reticular Formation (PPRF)

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

Vertical gaze center

A

Rostral intersitial Nu of MLF

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

Tonic activity for vertical gaze hold

A

Interstitial Ny of Cajal

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

Pretecal nuclei projects to

A

Edinger-Westphal nu

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

horizontal gaze hold center

A

prepositus hypoglossi

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

conjugate eye movements

A

eye movement in same direction

PPRG coordinates horizontal conjugate gaze

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

Medial Mid-Pontine Syndrome

A

Diminished strength w/ spasticity

Loss/decrease in position, vibration sense and fine tough

Lateral rectus muscle paralysis

Paralysis of conjugate gaze to L side

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

saccades

A

ballistic high velocity (800 deg/s)

driven by

  • frontal eye fields via PPF
  • Rostral interstitial nu
  • Superior colliculus
17
Q

What are involuntary (reflexive) saccades a response to?

A

visual or auditory inputs to PPRF

18
Q

Superior Colliculus

A

coordinates conjugate eye movement

Tectospinal tract

19
Q

Tectospinal tract

A

movement of head on neck in response to visual inputs

20
Q

Brodmann’s Area 8

A

frontal eye fields

21
Q

frontal eye fields projet to

A

superior colliculus (ipsi)

PPRF (contralateral)

Rostral interstitial nu (contralateral)

22
Q

Near Reflex Triad

A

convergence

lens accommodation

pupillary constriction

23
Q

Vergence reflexes

A

coordinated contraction of L & R medial rectus & relaxation of L & R lateral rectus

24
Q

Accomodation reflexes

A

lens is distorted by ciliary body when viewing objects

25
Q

direct reflex

A

pupil constricts when light is shined into same eye

26
Q

Consensual reflex

A

pupil contricts when light is shined into other eye

27
Q

Horner’s Syndrome

A

partial ptosis

28
Q

Miosis

A

patient has constriction of pupil since they have lost dilator m

29
Q

Anhidrosis

A

loss of facial swelling

Neuroscience exam 3 (4 decks)

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