The Muscular System

The muscular system is an organ system consisting of skeletal, smooth and cardiac muscles. It permits movement of the body, maintains posture, and circulates blood throughout the body.


Like most systems in the body, the muscular system does not work in isolation. The most obvious systems that interact with muscular system are the skeletal system, the nervous system and the circulatory system. Muscles are also involved in the digestive system, the respiratory system and the immune system.

                                        Diseases and Disorders

  • Muscular dystrophy . (A broad term that describes a genetic (inherited) disorder of the muscles)
  • Duchenne muscular dystrophy
  • Becker muscular dystrophy
  • Trichinosis
  • Toxoplasmosis
  • Myasthenia Gravis
  • Polymyositis
  • Dermatomyositis

                                                    Fun Facts

It takes half as long to gain muscle than it does to lose it.

The smallest muscles are found in the middle ear.

The hardest working muscle is in the eye.

It takes 17 muscles to smile,It takes 42 muscles to frown.

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