EXHIBIT ID: BR_C_0556

Substantia Nigra: Dopamine Pathway Interference

Substantia Nigra: Dopamine Pathway Interference

This medical exhibit displays the sagittal view of the brain and an enlarged view of the substantia nigra. In this enlarged view, the cells of the substantia nigra affected by the accumulated paraquat stop producing dopamine, causing symptoms similar to Parkinson's disease.