- The suffix -taxia means muscular coordination and refers to a lack of coordination of muscle movements, such as in the condition of ataxia. Ataxia occurs when there is dysfunction in the parts of the nervous system that coordinate muscle movements, such as the cerebellum. - Ataxia can be caused by conditions that affect the brain like strokes, tumors, or multiple sclerosis. It affects the side of the body opposite the side of the brain that is affected. There is no cure for ataxia but physical therapy can help reduce disability. - The suffix -algesia means pain and sensitivity. Analgesia refers to the absence of pain, either accidentally or intentionally through analgesics to relieve