Digestive System
Nervous System
Circulatory System
Respiratory System
Skeletal System
100
Where the digestive system starts
What is the mouth?
100
The control center of the nervous system
What is the brain?
100
This muscle pumps blood into the lungs
What is the heart?
100
This is the main organ in the respiratory system
What are the lungs?
100
The bones in your spine
What are vertebrae?
200
The 3 organs in the digestive system
What are the large intestine, small intestine and the stomach?
200
The bones that support your whole back
What is the spinal cord?
200
The number of chambers in the heart
What is four?
200
This starts the respiratory system
What is breathing?
200
The number of bones in an adult
What is 206?
300
The longer of your intestines
What is the small intestine?
300
The 3 parts that make up the nervous system
What are the brain, spinal cord and nerves?
300
The 3 parts that make up the circulatory system
What are the heart, blood vessels and blood?
300
The 3 parts that make up the circulatory system
What are the trachea, lungs and diaphram?
300
The number of bones in your ear
What is three?
400
This moves food from the back of your throat to your stomach
What is the esophagus?
400
3 pounds
What does a typical brain weigh?
400
The tubes that carry the blood back to the heart
What are veins?
400
This is the gas that you exhale
What is carbon dioxide?
400
This is in the center of your bone
What is bone marrow?
500
A substance in your stomach that mixes with mashed-up food particles
What are gastric juices?
500
The microscopic cells that the brain creates connections between
What are neurons?
500
Another name for the circulatory system
What is Cardiovascular system?
500
The name of the tiny air sacs in your lungs
What are alveoli?
500
It makes blood cells
What is the job of the bone marrow?
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