The substantia nigra is:
A)located in the midbrain.
B)the brain location that has shown the greatest degree of neurogenesis in studies with rats and primates.
C)the primary communication link between the two hemispheres of the cerebral cortex.
D)the point at which motor signals cross over from one side of the brain to the opposite side of the body.

Question

Quizplus · Accepted Answer

The substantia nigra is located in the midbrain, specifically in the ventral tegmental area. It is involved in motor control and plays a critical role in producing dopamine, a neurotransmitter that is important for movement, reward, and motivation. Dysfunction of the substantia nigra is associated with Parkinson's disease.

The Substantia Nigra Is