Medically reviewed by Katrina Carter, DPT Key Takeaways Voluntary muscles can be controlled by the person, like muscles in your neck and legs. Involuntary muscles work without you thinking about it, ...

Though many people experience muscle twitching, it's often incorrectly identified as a muscle spasm. While both are involuntary contractions of a muscle, muscle spasms and muscle twitching aren't ...

Dystonia and chorea both describe sudden, involuntary movements associated with neurological disorders. However, people with dystonia display repetitive movements that follow a pattern while chorea ...

The film discusses the human skeleton and muscles through the perspective of a college student explaining to his younger brother. It covers the structure and function of bones, including their ...