It Dose not, as far as i know.
Skeletal : weakened bones (osteoporosis), joint problems (arthritis). Muscular : Tears and neurological disorders (nothing wrong with the muscles, just the nerves that control them).
Osteoporosis.
muscular and skeletal
The Muscular-Skeletal System.
osteoporosis
The nervous system.
the muscular and cardiovascular system.
the main organ of the muscular system is the muscles
The nervous system tells the muscular system what to do.
The nervous system, the skeletal system, and the muscular system.
muscular system
Your bones are part of your skeletal system, not muscular.