MODEL RELEASED. Parkinson's disease patient. Hand of an elderly man with Parkinson's disease is examined by a doctor. The doctor tests the wrist for "cogwheel" tone,while the fingers are tested for slow movement (bradykinesia). Parkinson's disease is characterised by a shuffling unbalanced walk,rigid posture and slow trembling movements. Parkinson's disease is caused by degeneration of nerve cells in the basal ganglia of the brain. This causes a lack of dopamine,a brain chemical required for proper motor activity. The disease occurs mainly in the elderly,and is more common in men. Drug treatment minimizes the symptoms | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Fraser, Simon / Newcastle Upon Tyne / Royal Victoria Infirmary |
Taille de l’image : | 2669 px × 3463 px |
Model Release : | Disponible |
Property Release : | Non requis |
Restrictions : | - |