The skeletal system includes all the bones in the body.
The nerveous system is the communication control center of the body.
The muscular system is the movement control center of the body.
The circulatory system is the "heart" of the body.Pump up your knowledge of this important system, and see how it pumps blood and nutrients throughout the body.
The digestive system is the nutrient control center of the body.
The respiratory system is the breathing control center of the body.