visual and visual motor system
motor functions review
coordination, reach and grasp
Muscle tone,reflexes and postural control
gait cycle
100
ability to jump eyes from point to point
What is saccades?
100
embedded in extrafusal muscle fibers.
What are muscle spindles found?
100
inferior temporal or ventral "what" pathway
what pathway is object recognition?
100
only one synapse
How many synapses are in a monosynaptic reflex?
100
stride
What is the other name for gait cycle?
200
bringing images of a single object into sight at the same time.
What is vergence?
200
quickly send info regarding any changes in muscle length
What is Ia afferents?
200
posterior parietal cortex
Where is the lesion for optic ataxia?
200
reciprocal inhibition
What is an example of disynaptic reflex
200
60%
how long are you in the stance phase for
300
process where eye movements direct the fovea to a target. info in through the fovea takes up 50% of visual cortex.
What is foveation?
300
less sensitive does not respond to rate of change. More responsive to static length of muscle.
What is group II endings?
300
anticipatory postural adjustments
What is the cerebellum important for in postural support?
300
hypertonicity: spasticity or rigidity
What is high tone?
300
heel contact
the point when the heel comes in contact with the ground is?
400
difficulty making contralateral saccades but can be imporved over time with practice.
What is a lesion to superior colliculus?
400
motor input to muscle spindles allowing them to stay taunt and responsive all the time.
What is the purpose of Gamma Motor neurons
400
shape, size and texture
What are intrinsic properties of reach and transport?
400
slow and ongoing adjustments because they are self-initated and purposeful
What is anticipatory balance (slow)?
400
early swing
What is period from the time of toe off to mid swing?
500
VOR stabilizes the eyes relative to the external world, compensating for head movements.
What does vestibulo-ocular reflexes do?
500
in most movements alpha and gamma motorneurons function simultaneously. This allows you to contract a muscle but still keep the muscle spindle reactive.
What is alpha gamma coactivation
500
paralysis, pain, weakness and incoordination
What are the four primary effects of abnormal motor control?
500
gastrocnemius, hamstrings and paraspinal muscles
What muscles are active in the ankle strategy?
500
problems in the cerebellum
What causes ataxic gait?
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