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www.reference.com/science/gases-humans-exhale-2e229a37e5894295

What Gases Do Humans Exhale? Humans exhale oxygen, carbon dioxide and nitrogen. ... and 79 percent nitrogen, according to the BBC; only the amount of nitrogen remains constant in the exchange. Exhaled air also contains water vapor. Red blood cells travel by vein to the lung; they give of carbon dioxide and take in oxygen. ... what gas do we ...

en.wikipedia.org/wiki/Exhalation

Exhalation (or expiration) is the flow of the breath out of an organism. In humans it is the movement of air from the lungs out of the airways, to the external environment during breathing.. This happens due to elastic properties of the lungs, as well as the internal intercostal muscles which lower the rib cage and decrease thoracic volume. As the thoracic diaphragm relaxes during exhalation ...

www.quora.com/What-is-the-chemical-composition-of-exhaled-air

Well, I've always assumed there was CO2 in the air we exhale, but we're also able to do mouth-to-mouth resuscitation, so there has to be some oxygen, too. So I googled it. According to google, the air we exhale is "typically composed" of a mixture of 78.04% nitrogen and 13.6 to 16% oxygen.

www.reference.com/science/humans-inhale-exhale-8b2e3c0bcd1...

How Do Humans Inhale and Exhale? Inhaling happens when a special muscle within the chest, called the diaphragm, contracts and expands the lungs, pulling in air. Conversely, exhaling occurs when the diaphragm relaxes and air is pushed out of the lungs.

sciencing.com/chemical-composition-exhaled-air-human-lungs...

Other chemicals can exist in the air that humans inhale and exhale, some of which can be damaging to a human's health. Particulate matter from industries, smoke from cigarettes and other chemicals like sulphur and nitrogen oxides can cause harm to the lungs.

en.wikipedia.org/wiki/Breathing

Breathing (or ventilation) is the process of moving air into and out of the lungs to facilitate gas exchange with the internal environment, mostly by bringing in oxygen and flushing out carbon dioxide.. All aerobic creatures need oxygen for cellular respiration, which uses the oxygen to break down foods for energy and produces carbon dioxide as a waste product.

www.forbes.com/sites/quora/2017/02/28/why-do-we-inhale...

Why do we inhale oxygen and exhale carbon dioxide? originally appeared on Quora: the place to gain and share knowledge, empowering people to learn from others and better understand the world ...

www.nhlbi.nih.gov/health-topics/how-lungs-work

Air first enters your body through your nose or mouth, which wets and warms the air. ... - How the Lungs Work. Breathing In (Inhalation) ... When you breathe out, or exhale, your diaphragm relaxes and moves upward into the chest cavity. The intercostal muscles between the ribs also relax to reduce the space in the chest cavity.

www.smh.com.au/entertainment/books/we-breath-in-oxygen-and...

The permanent gases in air we exhale are roughly 78 per cent nitrogen, 15 to 18 per cent oxygen (we retain only a small amount), 4 to 5 per cent carbon dioxide and 0.96 per cent argon, the CO2 ...

in.answers.yahoo.com/question/index?qid=20080915115501AAhKpWQ

what we inhale is common air what is everywhere around what we exhale has very less amount of oxygen in it because the lungs suck oxygen its wrong that we only exhale carbon di oxide! we exhale air with more carbon di oxide than normal and less oxygen