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The human body system that controls the body's reactions to the outside world. It is the system that controls the actions, emotions, thoughts, memories, sensations, and senses.
The part of the brain responsible for controlling vital functions such as heartbeat, breathing, and blood pressure.
The human body system that supports the body and gives it shape, protects internal organs, and makes new blood.
The human body system that causes movement of the body parts and also helps with digestion and circulation.
The human body system that transports oxygen and nutrients to the body, takes carbon dioxide back to the lungs, and fights infections with white blood cells.
The muscular action which helps move food through the esophagus and through the rest of the digestive system.
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