Respiratory System

Front

What are tiny hairlike structures that line the nasal passages and most of the respiratory system?

Back

Cilia

Front

What does the pitch of a sound depend on regarding vocal cords?

Back

The thickness and tightness of the vocal cords.

Front

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

Back

Snore

Front

What are the tiny air sacs in the lungs called?

Back

Alveoli

Front

What are the two tubes that branch off the trachea?

Back

Bronchi

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 the respiratory system?

Back

The diaphragm helps in breathing by contracting and relaxing to change the volume of the chest cavity.

Front

What is the trachea commonly known as?

Back

The windpipe.

Front

What is the purpose of the alveoli in the lungs?

Back

To facilitate the exchange of oxygen and carbon dioxide.

Front

What is the function of the bronchi?

Back

To carry air from the trachea to the lungs.