6.- Muscular System - Diseases

Diseases:

Dermatomyositis: Is a disease that affects the skin and muscle. The characteristics of dermatomyositis are skin rashes, muscle weakness and inflammatory myopathy or inflamed muscles. Dermatomyositis can affect adults and children.

Symptoms:
- Muscle pain
- Muscle tenderness
- Fatigue
- Weightloss

Rhabdomyolysis: Is a disease that destroys skeletal muscle. This can be caused by a muscle injury. If you have a lot of myoglobin, is the protein that stores oxygen in the muscles, it can damage the kidneys.

Symptoms:
- General weakness
- Muscle tenderness
- Dark or red urine
- Muscle stiffness

Polymyositis: It is a degenerative and inflammatory disease in nature. It affects the tissue that cause weakness and muscle atrophy. commonly affects adults aged 30 to 50 years. They develop gradually over weeks or months.

Symptoms:
- Muscular weakness
- Joint pain
- Fatigue
- Weightloss

Webgraphy:

http://www.newhealthadvisor.com/Muscular-System-Diseases.html

http://www.webmd.com/a-to-z-guides/rhabdomyolysis-symptoms-causes-treatments

https://medlineplus.gov/ency/article/000473.htm