7.12B Respiratory, Digestive and Circulatory Systems

Front

What are the main organs in the respiratory system?

Back

Lungs

Front

What is the circulatory system responsible for?

Back

Carrying materials around in your body

Front

Your _____________ releases juices to break down food.

Back

Stomach

Front

What is another word for your windpipe?

Back

Trachea

Front

Your _______ is a muscle connected to the bottom of your lungs that helps your lungs expand and contract when you breathe.

Back

Diaphragm

Front

What is the function of the lungs?

Back

To facilitate the exchange of oxygen and carbon dioxide during breathing.

Front

What is the role of the heart in the circulatory system?

Back

To pump blood throughout the body.

Front

What are alveoli?

Back

Tiny air sacs in the lungs where gas exchange occurs.

Front

What is the esophagus?

Back

A tube that connects the throat to the stomach, allowing food to pass.

Front

What is the diaphragm's role in breathing?

Back

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