50.2 MB (1.6 MB compressed)
3403 x 5161 pixels
28.7 x 43.7 cm ⏐ 11.3 x 17.2 in (300dpi)
PROF J. J. HAUW, ISM / SCIENCE PHOTO LIBRARY PROF J. J. HAUW, ISM / SCIENCE PHOTO LIBRARY
Parkinson's disease. Section of a brainstem belonging to a patient with Parkinson's disease (bottom) compared with a section of a healthy brainstem (top). The comparison shows a loss of dopamine-secreting (dopaminergic) cells (the substantia nigra, blue bands). Parkinson's disease is a movement disorder caused by this loss of cells and the resulting loss of dopamine, which is a neurotransmitter necessary for normal motor function.
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