Huntington's disease is a fatal disorder characterized by abnormal muscle movements called chorea. Based on your knowledge of the nervous system, which brain region below represents the area of the brain disrupted by Huntington's disease?
A) thalamus
B) midbrain
C) caudate nucleus
D) corpus callosum

Question

Quizplus · Accepted Answer

Huntington's disease is a result of degeneration and loss of cells in the caudate nucleus, which is a part of the basal ganglia. These cells play a role in the regulation of movement and their loss leads to the characteristic chorea movements seen in Huntington's disease. The other brain regions listed (thalamus, midbrain, corpus callosum) are not primarily involved in the motor symptoms of Huntington's disease.

Huntington's Disease Is a Fatal Disorder Characterized by Abnormal Muscle