Front

What is the main function of the respiratory system?

Back

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

Front

What is the trachea?

Back

The trachea, also known as the windpipe, is a tube that connects the throat (pharynx) to the lungs, allowing air to pass through.

Front

What are alveoli?

Back

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

Front

What role does the diaphragm play in breathing?

Back

The diaphragm is a muscle that contracts and relaxes to help draw air into the lungs and push it out.

Front

What is asthma?

Back

Asthma is a condition that causes the bronchioles to narrow, making it difficult to breathe, especially after exercise.

Front

What is the correct order of air flow during inhalation?

Back

The correct order is: Nose/Mouth (2) -> Trachea (3) -> Bronchi (1) -> Lungs (4).

Front

What is the function of the bronchi?

Back

The bronchi are the main passageways that branch off from the trachea and direct air into each lung.

Front

How does oxygen enter the body?

Back

Oxygen enters the body when we inhale.

Front

What is the role of the larynx?

Back

The larynx, or voice box, is involved in sound production and also protects the trachea against food aspiration.

Front

What happens during exhalation?

Back

During exhalation, the diaphragm relaxes, and air is pushed out of the lungs.