Respiratory System

Front

What is the trachea?

Back

The trachea is a tube that carries air to the lungs and divides into two smaller tubes called bronchi.

Front

What are bronchi?

Back

Bronchi are the two smaller tubes that branch off from the trachea and lead to the lungs.

Front

What is the main function of the lungs?

Back

The lungs are responsible for taking in oxygen and releasing carbon dioxide.

Front

What do we breathe in?

Back

We breathe in oxygen.

Front

What do we breathe out?

Back

We breathe out carbon dioxide.

Front

What is the mouth's role in the respiratory system?

Back

The mouth is one of the openings through which air enters the respiratory system.

Front

What is the pharynx?

Back

The pharynx is a part of the throat that connects the mouth and nasal passages to the esophagus and larynx.

Front

What are alveoli?

Back

Alveoli are tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place.

Front

True or False: We breathe in carbon dioxide and breathe out oxygen.

Back

False. We breathe in oxygen and breathe out carbon dioxide.

Front

What is the role of nostrils?

Back

Nostrils are the openings in the nose that allow air to enter the respiratory system.