The<unk> s (or<unk> s) <unk>  are a group of progressive<unk> ogical disorders that destroy<unk><unk> s, the cells that control voluntary muscle activity such as speaking, walking, breathing, and swallowing.
Motor neuron disease
Basal ganglia disease
Adrenomyeloneuropathy
Amyotrophic lateral sclerosis
Spinal cord tumor
Hereditary motor and sensory neuropathy
Inflammatory myopathy
Muscular dystrophy