Respiratory System

Front

What is the primary function of the alveoli in the respiratory system?

Back

The primary function of the alveoli is to facilitate the exchange of oxygen and carbon dioxide between the air and the blood.

Front

Define the term 'pharynx'.

Back

The pharynx is a chamber located behind the nose and mouth that serves as a pathway for air to enter the trachea.

Front

What are bronchial tubes?

Back

Bronchial tubes are the air passages that branch from the trachea into the lungs, allowing air to flow in and out.

Front

What is the process of inhalation?

Back

Inhalation is the process of taking in oxygen from the environment into the lungs.

Front

Explain the role of the diaphragm 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 gas exchange?

Back

Gas exchange is the process by which oxygen is absorbed into the blood and carbon dioxide is released from the blood in the alveoli.

Front

What is the trachea?

Back

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

Front

Define 'exhalation'.

Back

Exhalation is the process of expelling air from the lungs, which removes carbon dioxide from the body.

Front

What is the function of capillaries in the lungs?

Back

Capillaries in the lungs surround the alveoli and facilitate the exchange of gases (oxygen and carbon dioxide) between the air and the bloodstream.

Front

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

Back

The larynx, or voice box, is located at the top of the trachea and is responsible for producing sound and protecting the airway during swallowing.