The document discusses different types of nervous system conditions including plegia, taxia, hemiplegia, and ataxia. Hemiplegia is the total paralysis of one side of the body, often resulting from a stroke. Ataxia is a lack of muscle coordination caused by diseases affecting the cerebellum, impacting speech, eye movements, swallowing, walking and other voluntary movements. Different types of ataxia include cerebellar, sensory and vestibular ataxia.