Lecture 8: Cerebellum & Basal Nuclei with Motor Function Flashcards
Which motor area retrieves and coordinates memorized motor sequences?
Supplementary motor area (area 6)
Which cortex plans movements based on sensory and visual cues?
Premotor cortex (area 6)
What does the cerebellum play a major role in?
The timing of motor activities
T/F: The cerebellum is essential for locomotion.
False, not essential
The cerebellum functions with the _____ to enhance the stretch relfex.
Spinal cord
The cerebellum functions with the _____ to make postural movements.
Brain stem
The cerebellum functions with the _____ to provide accessory motor functions.
Cerebral cortex
What do the basal nuclei do?
Plan and control complex patterns of muscle movement
T/F: The cerebellum sends the output motor function signal to the muscles.
False, cerebellum sends signal to motor cortex which sends signal to muscles
_____ nuclei fibers project to reticular formation & vestibular nuclei and lesions cause trunk ataxia.
Fastigial
_____ nuclei project to the red nucleus and lesions cause extremity ataxia.
Dentate
_____ cells’ axons form parallel fibers in cortex.
Granular
_____ cells project from parallel fibers to granular cell bodies.
Golgi
_____ cells project from parallel fibers to purkinje axon hillock.
Basket
_____ cells project from parallel fibers to purkinje dendrites.
Stellate