Circulatory System
Digestive System
Respiratory system
Functions
Random
100

This organ pumps blood throughout the body. 

What is the heart?

100

This process involves breaking down food into smaller pieces.

What is digestion?

100

This organ is primarily responsible for gas exchange in the body.

What are the lungs? 

100

The main function of this type of blood cell is to fight infections

What is the white blood cells ? 

100

The main function of this organ is to filter and clean the air we breathe.

What are the lungs?

200

These blood vessels carry oxygenated blood away from the heart.

What are arteries?

200

This organ is primarily responsible for absorbing nutrients from food.

What are the small intestines?

200

This muscle that separates the lungs and the liver , and plays a key role in breathing ?

What is the diaphragm? 

200

The heart consists of this many chambers.

What are 4 chambers? 

200

This gas is inhaled and is essential for our survival.

What is oxygen. 

300

The main component of blood that carries oxygen is called this.

What are red blood cells?

300

This part of the digestive system stores food before it is digested.

What is the stomach?


300

The air passage that connects the throat to the lungs is called this.

What is the trachea? 

300

This process involves the removal of carbon dioxide from the body.

What is exhalation? 

300

Blood returning to the heart from the body enters this chamber first.

What is the right atrium?

400

This term refers to the smallest blood vessels where gas exchange occurs.

What are capillaries?

400

The digestive system begins in this part of the body, where food is chewed and mixed with saliva.

What is the mouth? 

400

These tiny air sacs in the lungs are where gas exchange occurs.

What are alveoli ? 

400

This organ is responsible for pumping blood throughout the body.

What is the heart? 

400

This part of the respiratory system is also known as the windpipe.

What is the trachea? 
500

This structure prevents blood from flowing backward in the heart.

What are valves?

500

This tube connects the throat to the stomach.

What is the esophagus? 

500

When you exhale, the diaphragm moves this way.

What is up (or relaxes)?

500

The tube that connects the mouth to the stomach. 

The esophagus. 

500

These are tiny air sacs in the lungs where oxygen and carbon dioxide are exchanged.

what are the alveolis?