Spinal Muscular Atrophy | National Institute of Neurological …
https://www.ninds.nih.gov/health-information/disorders/spinal-muscular-atrophy
WebNov 28, 2023 · What is spinal muscular atrophy? Spinal muscular atrophy (SMA) refers to a group of hereditary diseases that can damage and kill specialized nerve cells in the brain and spinal cord (motor neurons). Motor neurons control movement in the arms, legs, face, chest, throat, and tongue, as well as skeletal muscle activity, such as s peaking, w alking ...
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