23.5 MB (1.3 MB compressed)
3537 x 2322 pixels
30.0 x 19.6 cm ⏐ 11.8 x 7.7 in (300dpi)
BSIP DUCLOUX / SCIENCE PHOTO LIBRARY BSIP DUCLOUX / SCIENCE PHOTO LIBRARY
Parkinson's disease. Coloured Magnetic Resonance Imaging (MRI) scan of a coronal section through the brain of a person suffering from Parkinson's disease. The spinal column is at lower centre. The cerebrum of the brain (at upper frame) and the ears (at lower left and right) are also seen. The disease is caused by the loss of nerve cells from the basal ganglia (dark blue areas in box). Healthy basal ganglia produce dopamine, a neurotransmitter, that helps to control muscle contraction. However, in Parkinson's disease there is a lack of dopamine, resulting in jerky, involuntary movements. While treatments reduce the symptoms they do not stop the disease's progress.
Model release not required. Property release not required.