reflex eye movements Flashcards
(10 cards)
1
Q
Do all reflexes involve the spinal cord?
A
No – VOR is a reflex without spinal cord involvement.
2
Q
Are reflexes always simple neuron chains?
A
No – some, like VOR, involve complex brain circuits.
3
Q
Are reflexes always repeatable
A
No – response can vary with context.
4
Q
Why do we move our eyes?
A
A:
Keep images stable
Focus images on the fovea
5
Q
Function of VOR?
A
Keeps eyes stable when the head moves.
6
Q
Direction of eye movement?
A
Opposite to head movement (counter-rotation).
7
Q
Is VOR slow or fast?
A
Smooth, slow movement.
8
Q
What are the 2 types?
A
Saccades – quick jumps
Smooth – gradual shifts (e.g. VOR)
9
Q
What is fixation?
A
Pause between saccades.
10
Q
Conjugate vs Disconjugate?
A
Conjugate: both eyes same direction
Disconjugate: eyes move oppositely
