Dysarthria is a speech disorder caused by muscle weakness or paralysis that affects the ability to control the muscles involved in speech production. It can result in slurred, slow, or mumbled speech, making it difficult for others to understand. Treatment options may include speech therapy, assistive communication devices, or addressing any underlying medical conditions causing the dysarthria.

Dysarthria = difficulty with speech

Dysarthrosis = any disorder of a joint

Ataxic dysarthria is caused by damage to the cerebellum or its connections to the cerebral cortex or brain-stem.

Hypokinetic dysarthria is caused by damage to the upper brainstem in a region that is richly composed of darkly pigmented (nigra) nerve cells.

Spastic dysarthria is caused by damage to the primary voluntary motor pathways, which originate in the frontal lobes of the brain and descend to the brainstem and spinal cord.