Front

What is the main function of the respiratory system?

Back

The main function of the respiratory system is to facilitate the exchange of oxygen (O2) and carbon dioxide (CO2) between the body and the environment.

Front

What are the primary organs of the respiratory system?

Back

The primary organs of the respiratory system include the lungs, trachea, bronchi, and diaphragm.

Front

What is the role of the diaphragm in respiration?

Back

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

Front

What is 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

What are bronchi?

Back

Bronchi are the two main branches of the trachea that lead into each lung, further dividing into smaller bronchioles.

Front

What are alveoli?

Back

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

Front

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

Back

The pharynx is a passage that connects the nasal cavity and mouth to the larynx and esophagus, playing a role in both respiration and digestion.

Front

What is a common cause of respiratory disorders?

Back

Most respiratory disorders are caused by infections, such as colds, flu, or pneumonia.

Front

How does oxygen enter the bloodstream?

Back

Oxygen enters the bloodstream through the alveoli in the lungs, where it diffuses into the capillaries.

Front

What is the process of gas exchange in the lungs?

Back

Gas exchange in the lungs occurs when oxygen is inhaled and diffuses into the blood while carbon dioxide is expelled from the blood into the alveoli to be exhaled.