Respiratory System

Front

What are tiny blood vessels that surround the alveoli?

Back

Capillaries

Front

What is also called the windpipe?

Back

Trachea

Front

What are the tiny air sacs in the lungs?

Back

Alveoli

Front

What is the sound caused by air that cannot move freely and causes parts of the mouth and throat to vibrate and hit together?

Back

Snore

Front

Where does the exchange of oxygen and carbon dioxide take place?

Back

In the alveoli

Front

What is the main function of the respiratory system?

Back

To exchange oxygen and carbon dioxide between the body and the environment.

Front

What is the role of the diaphragm in breathing?

Back

The diaphragm contracts and relaxes to help move air in and out of the lungs.

Front

What are the two main parts of the respiratory system?

Back

The upper respiratory tract and the lower respiratory tract.

Front

What is the function of cilia in the respiratory system?

Back

Cilia help to trap and move particles out of the airways.

Front

What is the purpose of mucus in the respiratory system?

Back

Mucus traps dust, germs, and other particles to keep the airways clean.