Which movement deficits are associated with basal ganglia dysfunction?

Prepare for the essential 636 Period 3 Motor Final Test with comprehensive flashcards and detailed questions. Access explanations and hints for each question to ace your exam!

Multiple Choice

Which movement deficits are associated with basal ganglia dysfunction?

Movement deficits tied to basal ganglia dysfunction involve how movement is started, controlled, and stopped. When the basal ganglia aren’t working properly, you often see slower, softer, and harder-to-start movements, along with abnormal involuntary movements. The classic picture includes bradykinesia (slowness of movement), rigidity (increased muscle tone), tremor (often a resting tremor), and dyskinesias (uncontrolled involuntary movements). This pattern shows up in conditions like Parkinson’s disease and Huntington’s disease, reflecting the basal ganglia’s role in modulating movement amplitude and initiation. Other options point to problems in different areas: spasticity and hyperreflexia arise from upper motor neuron lesions; ataxia and dysarthria are typically due to cerebellar dysfunction; nystagmus is usually linked to brainstem or vestibular/cerebellar involvement.

Movement deficits tied to basal ganglia dysfunction involve how movement is started, controlled, and stopped. When the basal ganglia aren’t working properly, you often see slower, softer, and harder-to-start movements, along with abnormal involuntary movements. The classic picture includes bradykinesia (slowness of movement), rigidity (increased muscle tone), tremor (often a resting tremor), and dyskinesias (uncontrolled involuntary movements). This pattern shows up in conditions like Parkinson’s disease and Huntington’s disease, reflecting the basal ganglia’s role in modulating movement amplitude and initiation.

Other options point to problems in different areas: spasticity and hyperreflexia arise from upper motor neuron lesions; ataxia and dysarthria are typically due to cerebellar dysfunction; nystagmus is usually linked to brainstem or vestibular/cerebellar involvement.

More practice questions