Respuesta :

alexak
The 4 organ systems that are used when running:

1.) Circulatory system
2.) Muscular system
3.) Skeletal system
4.) Nervous system
♥ Your quesiton:
What four organ systems are used when running?
♥ And your answer is (not in any order)
♥  Nervous system
♥  Muscular system
♥  Circulatory system
♥  Skeletal system

Nervous system