Respuesta :
Your Brain Alerts your Nervous system,Then alerts your others parts of you body so that you are aware (sorry if im wrong)
Answer:
the nervous and endocrine system work to send hormones through the body the circulatory and endocrine system work together to send messages to the cells and nervous and skeletal system works together to keep the words to do the proper function and the nervous and muscular system work together to send the message to the brain
Explanation:
I hope this helps