Question

what is the main function of lungs?​

Answer 1

Answer:

Your lungs are part of the respiratory system, a group of organs and tissues that work together to help you breathe. The respiratory system's main job is to move fresh air into your body while removing waste gases.

Answer 2

Answer:

Currently, there are two COVID-19 vaccines given Emergency Use Authorization in the U.S. Visit our COVID-19 Vaccine Tracker to learn more.

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Lung Health & Diseases

How Lungs Work

The Respiratory System

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Your lungs are part of the respiratory system, a group of organs and tissues that work together to help you breathe. The respiratory system's main job is to move fresh air into your body while removing waste gases.

Why are lungs important?

Every cell in your body needs oxygen in order to live. The air we breathe contains oxygen and other gases. Once in the lungs, oxygen is moved into the bloodstream and carried through your body. At each cell in your body, oxygen is exchanged for a waste gas called carbon dioxide. Your bloodstream then carries this waste gas back to the lungs where it is removed from the bloodstream and then exhaled. Your lungs and respiratory system automatically perform this vital process, called gas exchange.

In addition to gas exchange, your respiratory system performs other roles important to breathing. These include:

Bringing air to the proper body temperature and moisturizing it to the right humidity level.

Protecting your body from harmful substances. This is done by coughing, sneezing, filtering or swallowing them.