Front

What is the primary function of the respiratory system?

Back

The primary function of the respiratory system is to facilitate the exchange of oxygen and carbon dioxide between the body and the environment.

Front

What are the main structures involved in the respiratory system?

Back

The main structures involved in the respiratory system include the nose, pharynx, larynx, trachea, bronchi, bronchioles, and alveoli.

Front

What is the role of the alveoli in the respiratory system?

Back

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

Front

What is the pathway of air during inhalation?

Back

During inhalation, air travels through the nose or mouth, down the pharynx, into the trachea, through the bronchi, and into the bronchioles, finally reaching the alveoli.

Front

What is the difference between the bronchi and bronchioles?

Back

The bronchi are the larger air passages that branch from the trachea into the lungs, while bronchioles are smaller branches that lead to the alveoli.

Front

What is the function of the trachea?

Back

The trachea, also known as the windpipe, is a tube that connects the larynx to the bronchi and allows air to pass to and from the lungs.

Front

How does the diaphragm assist in respiration?

Back

The diaphragm is a muscle that contracts and flattens during inhalation, creating a vacuum that pulls air into the lungs.

Front

What is the significance of the pharynx in the respiratory system?

Back

The pharynx serves as a passageway for air from the nose and mouth to the trachea and also plays a role in swallowing.

Front

What happens to air after it enters the bronchi?

Back

After entering the bronchi, air travels into smaller bronchioles and eventually reaches the alveoli for gas exchange.

Front

What is the role of cilia in the respiratory system?

Back

Cilia are tiny hair-like structures that line the respiratory tract and help to trap and move particles and mucus out of the airways.