Parkinson’s Disease Assignment Essay Assignment Paper

Parkinson’s disease (PD) has been defined as a steady progressive central neuro-degenerative disorder. The disease affects the body movement and is typified by severe symptoms which include significant rigidity in muscle, tremors in hands and legs among other body parts, loss of facial expression as well as hypophonia, diminished blinking and akinesia.

The nerve cells (or the neurons) are located in the substantia nigra of the brain which is pigmented part of the brain that secrete a chemical substance known as dopamine. Dopamine is a neurotransmitter that assists in the transmition and modulation of signals between the substantia nigra and the corpus striatum which is a relaxation point of the brain and functions in smooth muscle activity.

Corpus striatum functions in balancing the body as it works dependently between the two neurotransmitters namely the dopamine and acetylcholine. Consequently, neurons may get impaired or damaged or die which leads to non-production of dopamine in the brain.

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