3.2. Types of muscles

IDevice Icon 3.2. Types of Muscles





We divide muscles into two groups:

  • We move our voluntary muscles when we want to. The muscles in our arms are voluntary muscles.
  • The involuntary muscles move by themselves. We do not control their movements. For instance, the heart is a muscle; it moves all the time.

Licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 License

Andrés Egea - Yolanda Marcos 2008