the endocrine system carries messages from the body to the brain
endocrine_system is system. endocrine_system is organ_system. endocrine_system is not body_part. endocrine_signal is hormone. endocrine_system is not organ_system. endocrine_signal is not hormone. body is message. endocrine_signal is not molecule. endocrine_system is not system. endocrine_system is body_part.