What role does dopamine play in motor control?
A)Dopamine inhibits the substantial nigra of the basal nuclei and inhibits the upper motor neurons from initiating movement.
B)Dopamine binds receptors on the caudate nucleus and putamen,inhibiting the globus pallidus.The upper motor neurons are eventually activated.
C)Dopamine binds receptors in the cerebral cortex to activate upper motor neurons to produce coordinated and smooth movements.
D)Dopamine enhances the process of motor learning in the cerebellum to reduce motor error.

Question

Quizplus · Accepted Answer

Dopamine plays an important role in motor control by binding to dopamine receptors on the caudate nucleus and putamen. This inhibits the globus pallidus, which ultimately leads to the activation of upper motor neurons and the initiation of movement. Parkinson's disease, which is characterized by tremors, rigidity, and difficulty initiating movements, is associated with the degeneration of dopamine-producing neurons in the substantia nigra.

What Role Does Dopamine Play in Motor Control