Rocks are either classified as sedimentary, igneous or metamorphic, depending on the manner in which they were formed. Most rocks encountered in everyday life are sedimentary, although some igneous rocks, such as granite, are also common.
Neuromuscular scoliosis encompasses scoliosis that is secondary to neurological or muscular diseases. This includes scoliosis associated with cerebral palsy, spinal cord trauma, muscular dystrophy, spinal muscular atrophy and spina bifida.
Scoliosis (sko-lee-O-sis) is a disorder in which there is a sideways curve of the spine, or backbone. Curves are often S-shaped or C-shaped. In most people, there is no known cause for this curve. This is known as idiopathic (id-ee-o-PATH-ik) scoliosis.