-
x

Meet New Friends!

Recommended friends are based on your interests. Make sure they are up to date.

Friends ff8c072dd79a91c1300f032d674241a8d64367100ffb1f25fa3f9bec4a05319f
Kidzworld Logo

How The Lungs Work

Your lungs can breathe in and out as much as 36,000 times a day without you even having to think about it. Isn't it about time you reflected on all the hard work they do? We take a closer look at the inner workings of your lungs.

How Lungs Work - A Little Gas Goes a Long Way

Very simply, the function of the lungs is to absorb oxygen, a gas that your body needs to function, and expel carbon dioxide, a "waste gas" that your body can't use (no, not that kind of waste gas!). But nothing is ever as simple as it sounds. When you breathe in, your diaphragm and other muscles expand to allow room for your lungs to fill. The low air pressure in your empty lungs creates a vacuum that sucks air in from the higher-pressure environment. The air flows from your nose and mouth, through your trachea (windpipe) and into your lungs.

How Lungs Work - The Big Trade Off

Once the air reaches the lungs, it flows into increasingly narrow bronchioles (small airways that extend into the lobes of the lungs) until it reaches the alveoli (tiny, thin-walled sacks). Once in the alveoli, the oxygen in the air passes through the thin membrane walls and into the pulmonary capillary. From there, the oxygen binds to the hemoglobin in red blood cells. The red blood cells give back carbon dioxide, which then goes back through the membrane, into the alveoli, through the bronchioles, into the lungs and - woosh - is exhaled back out of your body. The oxygen that was passed off to the red blood cells is then circulated around your body.

How Lungs Work - Did U Know?

  • When removed for transplant, the lungs can survive outside the body longer than any other organ.
  • The left lung is smaller than the right lung to make room for the heart.
  • About 10,000 quarts (9,464 liters) of air go through your lungs every day.
  • The total surface area of the alveoli is around the size of a tennis court.
  • New babies at rest breathe between 40 and 50 times per minute but by the time they're five years old, their breathing rate decreases to around 25 times per minute.
Related Stories:
7 Comments

Related Stories

Micro aa micro
What’s your ideal weight? The Body Mass Index (BMI) is a mathematical equation that is supposed t...
Micro eva markvoort 65 5f00 redroses micro 2
Eva Markoot is the star of 65 Red Roses, a film based on the real story of Eva’s quest for a doub...
Micro asthma 3 micor
Have you ever been runnin' along with buds, when suddenly you can't catch your breath? You might ...
F1161043538203

What % of Lung Cancer is Caused by Tobacco?

  • 30 per cent.
  • 50 per cent.
  • 75 per cent.
  • 95 per cent.

General In The Forums

XxRuby_PhoenixxX
Today, several states had thousands of women joining together to fight against Trump. Celebrities like Madonna, Ariana Grande, and Miley Cirus showed up, some gave speeches, women shouted and raised their signs. Will Trump budge? What do you think? Should women be able to have abortion? Should Trump cut funds of women?
reply about 5 hours
AnnaOfExquizurd
"Synyster3" wrote:I have used both the Steam and standalone version of GameMaker. This could just be me being biased against Steam, but I recommend the standalone version. I think it loads faster, compiles faster, and is just overall smoother... The only thing that the Steam version has that this one does not is access to the 'workshop,' in which you can easily share and play other people's games. Ah, cool! X3 I'll pass on your advice to my friend so someone may benefit from it, as I don't use the application anymore. Thanks ^-^
reply about 5 hours
Synyster3
Synyster3 posted in Electronics:
@AnnaOfExquizurd: I have used both the Steam and standalone versions of GameMaker. This could just be me being biased against Steam, but I recommend the standalone version. I think it loads faster, compiles faster, and is overall smoother... The only thing that the Steam version has that this one does not is access to the 'workshop,' in which you can easily share and play other people's games.
reply about 5 hours
AnnaOfExquizurd
"Streety43" wrote:Donald Trump became our 45th president yesterday. Do you support him and his actions? I do support him and his actions. He's the leader of our country, whether we like it or not, and we need to help him, as our government is based on the people. When you wish for him to fail, you're practically wishing for the country to fall... which isn't a good thing for the citizens o.o
reply about 5 hours
AnnaOfExquizurd
"Synyster3" wrote:Yeah, I'm very interested in game development!For over three years, I have been working with a program called GameMaker Studio... I've made several top-down and platformer games, as well as one 3D game. I never got too far with my 3D game, but I have the basic movement down. Right now, I'm working on a top-down survival shooter game! I've done a bit of experimenting with GameMaker Studio, but was too lazy to learn the coding and dropped it :P My friend is learning how to actually USE it though. He always makes fun of me for it, lol. Do you use it through Steam or found the program and downloaded it?
reply about 5 hours