Neuro Section 5- Part 2 Flashcards
What function in:
Timing and coordination of movement,
Adjusting and modulating the output of the motor cortices, corticospinal tract, brain stem motor pathways and spinal cord
Cerebellum
What doe the input axons produce for the cerebellum?
Mossy and climbing fibers (EPSP)
What type of neurons are Purkinje cells?
GABAergic
What type of PSP do Purkinje cells induce?
Inhibitory PSP
What type of receptor is GABA?
Ionotropic
What type of channel is the GABA receptor?
CI- channel
What is synthesized from glutamate by the enzyme glutamic acid decarboxylase?
GABA
What do high affinity transporters do with GAB once they terminate it?
Return it to the synaptic terminals for reuse
Where are the regions of the cerebral cortex that project to the cerebellum mainly form?
Sensory and Motor association cortex
Where is the sensory association cortex located in the cerebellum?
Parietal lobe
Where is the motor association cortex located in the cerebellum?
Frontal lobe
What part of the cerebellum goes to descending brainstem and corticospinal pathways?
Spinocerebellum
What part of the cerebellum goes to vestibular nuclei?
Vestibulocerebellum
What part of the cerebellum functions is proper execution of coordinated movement?
Spinocerebellum
What part of the cerebellum functions is coordinated balance and eye movement?
Vestibulocerebellum
What part of the cerebellum functions is planning coordinated movement sequences?
Cerebrocerebellum
What does the cerebellum help reset?
VOR (vestibulo ocular reflex)
What is inappropriate measure of muscular contraction?
Dysmetria
What is a failure of the components of a complex, multiple joint movement to occur in a coordinated fashion?
Asynergia
What is an oscillating movement disorder that worsens when the animal is moving?
Intention tremor
What is a ataxia, wide-based gait, dysmetria, asynergia, intention tremor, and nystagmus clinical signs of?
Cerebellar disease
