Spinal muscular atrophy is classed being a motor neuron degenerative sickness involving the anterior horn in the spinal twine and decrease motor neurons. That is because of mostly into a homozygous deletion of SMN1 on chromosome 5q11.2-13.3, leading to an absence or lower in deep tendon reflexes, diffuse symmetrical proximal https://saddamg185sxa7.wikipublicity.com/user