Spinal muscular atrophies are a genetically and clinically heterogeneous group of rare debilitating disorders characterised by degeneration of lower motor neurons – that is, neuronal cells situated in the anterior horn of spinal cord – and subsequent atrophy (wasting) of various muscle groups in the body. The clinical spectrum of various spinal muscular atrophies ranges from early infant death to normal adult life with only mild weakness.
Read more about Spinal Muscular Atrophies: Classification, Symptoms, Diagnosis, Treatment, SMA Treatment Acceleration Act, Further Reading
Famous quotes containing the word muscular:
“The genius of the Saxon race, friendly to liberty; the enterprise, the very muscular vigor of this nation, are inconsistent with slavery.”
—Ralph Waldo Emerson (1803–1882)