"Involuntary muscle" refers to the type of muscle in our bodies that we cannot control consciously. These muscles work automatically and are responsible for important functions like breathing, digestion, and pumping blood. Full definition
Infant dystonia disorder causes involuntary muscle contractions in babies, but it's actually a neurological condition. (grayandwhitelaw.com)
In that case, the skin cells became striatal medium spiny neurons, which are affected in Huntington's disease — an inherited, eventually fatal genetic disorder that causes involuntary muscle movements and cognitive decline beginning in middle adulthood. (sciencedaily.com)
They're brother and sister, and both have dystonia, a movement disorder that causes involuntary muscle contractions. (sbnation.com)