Exam 1 Part 9 Flashcards
What makes up the telencephalon?
Cortex, basal ganglia
What makes up the diencephalon?
Thalamus, hypothalamus
What is the pathway for the basal ganglia control circuit?
Cortex, striatum, globus pallidus, thalamus, cortex
What are the main neurotransmitters of the basal ganglia control circuit?
Acetylcholine, dopamine
What is the function of the basal ganglia control circuit?
Maintain normal posture, regulate amplitude and velocity, initiation of movement
Cortex initiates more impulses for movement than needed, the _____ dampens or modulate these impulses
Basal ganglia control circuit
Reduced movement
Hypokinsesia
Involuntary or excess movement
Hyperkinesia
What disease is commonly associated with hypokinesia?
Parkinson’s (rigidity)
What conditions are commonly associated with hyperkinesia?
Dystonia, chorea, tremor, spasm, tics, athetosis, ballism
What 2 things can happen if there is damage to the basal ganglia control circuit?
Hypokinesia, hyperkinesia
What is the etiologies of hypokinetic dysarthria?
Damage to basal ganglia control circuit; dopamine pathways, degenerative disease, CVA, unknown
What are some characteristics of hypokinetic dysarthria?
Decrease range of movement, rigidity, some movements may be fast and repetitive, reduced force of movement
What is the etiologies of hyperkinetic dysarthria?
Basal ganglia control circuit, unknown, toxic/metabolic drug, degenerative
What disease is associated with hyperkinetic dysarthria?
Huntington’s chorea