Respiratory, Digestive, & Circulatory Systems

Front

What is the muscular tube that moves food from the mouth to the stomach?

Back

Esophagus

Front

Which letter points to the lung in a diagram?

Back

B

Front

Where does oxygen enter the circulatory system?

Back

Alveoli

Front

Which organ absorbs extra water and minerals?

Back

Large intestine

Front

What is removed from the blood as it reaches the lungs?

Back

Carbon dioxide

Front

What is the primary function of the respiratory system?

Back

To facilitate gas exchange, bringing oxygen into the body and removing carbon dioxide.

Front

What is the role of the diaphragm in respiration?

Back

The diaphragm contracts and relaxes to help draw air into and push air out of the lungs.

Front

What is the function of the small intestine?

Back

To absorb nutrients from digested food.

Front

What are alveoli?

Back

Tiny air sacs in the lungs where gas exchange occurs.

Front

What is the main function of red blood cells?

Back

To transport oxygen from the lungs to the body's tissues and carry carbon dioxide back to the lungs.