Hypokinetic vs. Hyperkinetic Disorders

Question 1

hypokinetic

Answer 1

abnormally reduced amount of motor activity/decreased movement

Question 2

hyperkinetic

Answer 2

excessive amount of motor activity/increased movement

Question 3

Parkinson’s disease

Answer 3

hypokinetic disorder of the basal ganglia

caused by degeneration of the substantia nigra (loss of dopamine)

Question 4

Huntington’s disease

Answer 4

hyperkinetic disorder of the basal ganglia
caused by degeneration of caudate nucleus and areas of the cortex
presents with chorea and athetosis

Question 5

chorea

Answer 5

involuntary rapid, random movements of the trunk and limb

Question 6

athetosis

Answer 6

involuntary distal limb movements

Question 7

hemiballism

Answer 7

hyperkinetic disorder of the basal ganglia
caused by damage to the subthalamic nucleus (intrinsic nuclei)
presents with uncontrollable, rapid ballistic movements to the contralateral limbs