Involuntary Movement Flashcards
Dyskinesia
Involuntary Movement
What causes dyskinesia?
Structural or biochemical nervous system lesion
Physiological tremor
shaking in fingers due to agonist & antagonist actions
Myoclonic Jerk
may involve whole body or just a large muscle group. Usually normal occurrences
Benign Fasiculations
Twitches within muscles often after exercise. Not pathological
Hypokinesia
decreased movement. Seen in depression or Parkinsons
Hyperkinesia
increased movement. Exacerbated by emotional stress and decreased with response
Emotional Tremor
rapid tremor, low amplitude, worsens with volitional movement
Familial Tremor
hereditary tremor. Usually affects hands
Senile Tremor
associated with aging
Parkinsonian Tremor
“pill-rolling” at rest. Disappears or dampens with volitional movement (basal ganglion lesion)
Intention Tremor
worsens with refined volitional movement (Cerebellar pathology)
Postral tremor
occurs during maintenance of an intentional posture, disappears with movement
Nontremorus Hyperkinesia or Chorea
random, quick movement stimulating normal fragments or normal movements
Athetosis
Slow, writhing movements of fingers and extremities. Associated with pyramidal tract signs