Definition of muscles
They are long bundles of contractile tissue that form the basis of all movement.
two reasons why muscles are essential
Skeletal muscles - location & Voluntary or Involuntary
Attach to the skeleton and provide the skeleton with the ability to move.
- Voluntary
Smooth muscles - Location & Voluntary or Involuntary
Found in organs or organs systems = digestive and respiratory systems
- Involuntary
Cardiac muscles - Location & Voluntary or Involuntary
Form the walls of the heart and contracts to circulate the blood
- Involuntary