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18 Cards in this Set

  • Front
  • Back
Define dyskinesia.
Involuntary movement disorder
Define hypokinesia.
Slow or diminished movement


Increased muscle tone
Define akinesia
Absence of movement;

Impaired initiation of
stopping movement
Define bradykinesia
Reduced velocity and amplitude of movement
Define hyperkinesia
Increased in muscular movement


decreased muscle tone
Involuntary muscles are _____ dependent. Thus what?

Thus disappear when sleeping
Unilateral lesions of the basal ganglia affect which side of body?
Describe the NT imbalance of hypokinesia.
Dopamine < GABA + ACh
Describe the NT imbalance of hyperkinesia.
Dopamine > GABA + ACh
Define tremor.
Rhythmic, oscillatory movement
Define Athetoid
Slow, twisting movement of distal muscles
Define Choreiform
Brisk, fast like dance
Define ballistic
Fast, flailing (flinging), and rotatory movement of proximal extremities.
Define dystonia
Sustained or repetitive muscular contraction or cramping often resulting in joint distortions.
Define tic
Brief, abrupt spasmodic twitching and other stereotyped movements
Define Akathisia
Movements acted out by inner feeling for the need to move.

Often induced by antipsychotic medications.
Define myoclonus
Lightning like intermittent muscle jerks (of unknown origin)
Which involuntary movements can be temporarily suppressed.
Tic and akathisia