Parts and Functions of the Respiratory System

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 process of breathing called?

Back

Breathing is the act of pulling air into the lungs and eliminating air out of the lungs.

Front

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

Back

The pharynx serves as a passage for both air and food.

Front

What is the function of the larynx?

Back

The larynx is responsible for sound production and protecting the trachea against food aspiration.

Front

What is the trachea commonly known as?

Back

The windpipe.

Front

What are alveoli?

Back

Alveoli are tiny air sacs in the lungs where gas exchange occurs.

Front

What is the diaphragm's role in respiration?

Back

The diaphragm contracts and relaxes to help draw air into and push air out of the lungs.

Front

What is the difference between respiration and breathing?

Back

Breathing is the physical act of inhaling and exhaling air, while respiration refers to the biochemical process of converting oxygen into energy.

Front

What is the function of the nasal cavity?

Back

The nasal cavity filters, warms, and moistens the air we breathe.

Front

What is the epiglottis?

Back

The epiglottis is a flap of tissue that prevents food from entering the trachea during swallowing.