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Dysarthria refers to a group of speech disorders resulting from weakness, slowness, or in-coordination of the speech mechanism due to damage in the nervous system particularly to the facial nerves. Muscles become weak and do not work smoothly and efficiently together as they did before. These muscles include the lips, tongue, soft palate and the vocal cords. Speech can become slurred and is difficult to understand.

Again severity varies across people. For some this is a minor problem for others it can be difficult to say anything clearly and make themselves understood. Dysarthria is often accompanied by difficulties with swallowing.

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