Muscles are necessary for movement, digestion, excretion, reproduction, blood and air circulation as well as pretty much every other vital function of the human body.
i guess not.
The muscular system is need because it supports the body and allows for movement
To move and to drive.
Crayfish have muscles. They need them to move.
respiratory system circulatory system skeletal system
So that your muscles work?
muscular and skeletal
The Muscular-Skeletal System.
The nervous system.
the main organ of the muscular system is the muscles
the muscular and cardiovascular system.
The nervous system tells the muscular system what to do.