A muscular valve is like a strong flap that is capable of opening and closing at will. An example of a muscular valve is the pyloric sphincter.
Yes . It is an example for contact force.
A example is dead animals
lifting any heavy material
In general diseases that attack the muscles are called myopathies. Muscular dystrophy would be one example.
One example would be a "Spanish dancer".
Wrestling is a great example of an organized sport that has a lot of muscular endurance. A few of my friends that wrestle say that it is one of the most difficult, endurance requiring sports they have experienced.
lifting heavy objects
Drug Abuse
The most general function of the muscular system is to help a species move. An example of a muscle is the gastrocnemius which helps in flexing of the knee.
bababa
weight lifting arm Wrestling cycling tennis skiing