What makes up the locomotor system?
The skeletal system and skeletal muscles
The locomotor system receives orders from the ____ and ________.
Brain and spinal cord
The locomotor system works with the ______ to move the body.
Bones
What happens when a muscle receives an order?
It contracts and pulls the bones attached to it
When the muscle _____, the bones return to their original position.
relaxes
What is an example of an antagonistic pair of muscles?
Biceps and triceps
