Organs
Functions
Fun Facts
Interactions
Body Systems
100

This organ constantly pumps blood around the body. 

What is the heart?

100

The main job of the stomach.

What is to break down food?

100

The largest organ in the human body.

What is the skin?

100

The two systems that work together to move your body.

What are the muscular and skeletal systems?

100

This system is made up of the heart and blood vessels. 

What is the circulatory system?

200

This organ is responsible for taking in oxygen and releasing carbon dioxide. 

What are the lungs?

200
The main function of the lungs. 

What is the exchange of gases?

200

The number of chambers the human heart has.

What is four?

200

The systems that work together to deliver oxygen to the cells in the body. 

What are the respiratory and circulatory systems?

200

This body system breaks down food into nutrients.

What is the digestive system?

300

This organ helps to control your thoughts, movements, and emotions. 

What is the brain?

300

The main function of the skin.

What is to protect the body and maintain homeostasis?

300

The system that controls our voluntary and involuntary movements. 

What is the nervous system?

300

The systems that work together to absorb and deliver nutrients to the body.

What are the digestive and circulatory systems? 

300

This body system gets rid of waste products (urine, sweat). 

What is the excretory system?

400

This organ uses acid and mechanical digestion to break down food.

What is the stomach?

400

The function of the small intestine.

What is to absorb nutrients from the food being digested into the bloodstream?

400

The amount of bones an adult human has.

What is 206?

400

The body system that protects organs in the chest and abdomen. 

What is the skeletal system?

400

This body system sends electrical and chemical messages through the body. 

What is the nervous system?

500

This organ connects the mouth to the stomach and helps push food down. 

What is the esophagus?

500

Your heart rate and breathing rate increase during exercise because your body needs more of this.

What is oxygen?

500

The organ that can grow back if part of it is removed.

What is the liver?

500

The body systems that work together during movement.

What are the nervous, muscular, and skeletal systems?

500

This body system includes the spleen, lymph nodes, and white blood cells, which work together to protect the body from pathogens and disease. 

What is the immune system?

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