These are the nervous system and the endocrine (hormone) system. Each of our body systems are interconnected and dependent on each other. Our heart, which is part of our circulatory system, does not beat unless our brain, which is part of our nervous system, tells it to. Our skeletal system is dependent on our digestive system for increase in size and strength.
Explanation: You Can't Have One without the Other: How Body Systems are ... Incredibly, all of these cells, vessels and organs work together to keep you alive. ... Your heart does not beat unless your brain and nervous system tell it to do so. ... Stylized human body anatomy chart: skeletal, muscular, circulatory, nervous ...
These are the nervous system and the endocrine (hormone) system. These systems regulate body processes through chemical and electrical signals that pass between cells.
