Cardiovascular
Nervous
Respiratory
Digestive
Immune
100

This organ pumps blood thought the body. 

What is the heart?

100

This organ controls the body's thoughts, memory, and movements.

What is the brain?

100

These two organs help you breath.

What are the lungs?

100

This organ is where digestion begins.

What is the mouth?

100

These tiny organisms can make you sick.

What are germs?

200

These blood vessels carry blood away from the heart.

What are arteries?

200

This part of the nervous system carries messages between the brain and the body.

What is the spinal cord?

200

These muscles help you breath by moving up and down.

What is the diaphragm?

200

This tube carries food from your mouth to your stomach.

What is the esophagus?

200

These blood cells help fight infection.

What are white blood cells?

300

These blood vessels connect arteries and veins.

What are capillaries?

300

These carry messages throughout your body.

What are nerves?

300

This is the gas we breath in to survive.

What is oxygen?

300

This organ uses acid to break down the food you eat.

What is the stomach?

300

This organ helps you filter blood and fight infection.

What is the spleen?

400

These blood cells carry oxygen throughout the body.

What are red blood cells?

400

This is the body's response to something without thinking about it.

What is a reflex?

400

This is the process of breathing air out the lungs.

What is exhalation?

400

This organ absorbs the nutrients from the food you eat.

What is the small intestine?

400

These small structures help filter harmful substances from the body.

What are lymph nodes?

500

This is the name for the number of times your heart beats per minute.

What is heart rate?

500

This part of the brain controls breathing and heartbeat.

What is the brainstem?

500

This organ warms and filters the air you breathe.

What is the nose?

500

This liquid in your mouth helps break down food.

What is saliva?

500

This organ produces many of the cells that help fight infections.

What is bone marrow?

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