What is the role of the basal ganglia in movement control?

Chapter Seven Textbook Questions

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University
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1.
FLASHCARD QUESTION
Front
Back
The basal ganglia are involved in the regulation of voluntary motor movements, procedural learning, and routine behaviors. They help to inhibit unwanted movements.
2.
FLASHCARD QUESTION
Front
What happens when the basal ganglia are damaged?
Back
Damage to the basal ganglia can lead to reduced inhibition of the thalamus, resulting in involuntary movements, as seen in conditions like Huntington's disease.
3.
FLASHCARD QUESTION
Front
What is the function of the cerebellum?
Back
The cerebellum coordinates voluntary movements, balance, and motor learning. It contains more than half of the brain's neurons.
4.
FLASHCARD QUESTION
Front
What are saccades?
Back
Saccades are rapid movements of the eye that change the point of fixation. Inaccurate saccades can indicate dysfunction in the cerebellum.
5.
FLASHCARD QUESTION
Front
How does cold water affect fish movement?
Back
In cold water, fish can move rapidly but fatigue easily due to muscle stiffness and reduced metabolic efficiency.
6.
FLASHCARD QUESTION
Front
What is the primary target of the motor cortex's axons?
Back
The motor cortex sends its axons primarily to the medulla and spinal cord, which then relay signals to the muscles.
7.
FLASHCARD QUESTION
Front
What is the significance of the thalamus in motor control?
Back
The thalamus acts as a relay station for motor signals from the basal ganglia and cerebellum to the motor cortex.
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