Chapter 15 Neuroscience: Cerebellum

Complete the following statements using the appropriate terms: Akinesea refers to a loss of motor power for voluntary movements.

Complete the following statements using the appropriate terms: Athetosis is the slow writhing (flexion and extension) movements of the limb.

Complete the following statements using the appropriate terms: Hemiballism refers to the acquired wild flinging movements involving one side of the body secondary to a lesion in the subthalamic nucleus.

Complete the following statements using the appropriate terms: The basal ganglia include a group of nuclei that refine the cortically generated motor movements.

Complete the following statements using the appropriate terms: As a clinical symptom of Parkinson disease, bradykinesia marks the slowness in the initiation of voluntary motor movements.

Complete the following statements using the appropriate terms: Chorea refers to irregular, spasmodic, involuntary movements of the limbs or facial muscles.

Complete the following statements using the appropriate terms: Emerging subsequent to lesions in the brainstem reticular formation above the vestibular nucleus, decerebrate rigidity is marked by sustained stiffness in the extensor limb muscles.

Complete the following statements using the appropriate terms: As a complication of neuroleptic medications, tardive dyskinesia is marked by involuntary and deforming movements involving the facial muscles.

Complete the following statements using the appropriate terms: Tremor, a repetitive limb movement, is associated with pathologies of the basal ganglia circuitry.

List four major basal ganglia nuclei.