Parkinson's Disease Signs and Symptoms

Parkinson's disease (PD) is a progressive neurodegenerative disorder associated with a loss of dopaminergic nigrostriatal neurons.
Dopamine is a chemical used in body movement. A person with Parkinson's has abnormally low dopamine levels.
Deficiency of dopamine generally occurs in patients over 50 years.

Signs and symptoms:
  • Tremor: Tremor is present and most prominent with the limb at rest. The tremor may appear as a pill-rolling motion of the hand or a simple oscillation of the hand or arm.
  • Rigidity
  • Bradykinesia : Bradykinesia refers to slowness of voluntary movement. Bradykinesia is also expressed as micrographia (small handwriting), hypomimia (decreased facial expression),decreased blink rate and hypophonia (soft speech)
  • Postural instability © 2014 - All videos published on MedVideos are the property of their respective authors or publisher.