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How Blood Carries Oxygen

We all know that oxygen is the key to living. It's in the air you breathe, in your lungs and in your blood. What you might not know is how oxygen gets into your blood and how the blood carries oxygen through your body.

Blood and Oxygen - How It Works

You breathe air in through your nose and mouth. It makes its way into your lungs and dissolves in the water lining of the alveoli. Oxygen then clings to red blood cells as they pass through the alveolar capillaries - now the oxygen is in the blood.

Blood and Oxygen - Types of Blood Vessels

Three types of blood vessels carry blood from your lungs to every cell in your body.

  • Arteries - Arteries have muscular walls that pump oxygen-filled blood away from your heart to the tissues and organs, like the brain, kidneys and liver. Arteries get smaller as they get further from your heart. At their smallest point, arteries become capillaries.
  • Capillaries - Capillaries are the tiniest blood vessels. They connect arteries to veins.
  • Veins - Veins are what bring the "used" blood back to your heart.

Blood and Oxygen - Did U Know?

  • The only part of your body that has no blood supply is the cornea in the eye. It takes in oxygen directly from the air.
  • A severe sunburn damages the blood vessels so badly that it takes four to 15 months for them to return to their normal condition.
  • The human heart creates enough pressure to squirt blood 30 feet (nine meters) out of the body.
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Number of Breaths You Take Every Day?

  • 15,400.
  • 21,600.
  • 33,500.
  • 47,200.

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morning_flower
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rainbowpoptart
Although I think a tree stump has more brains than the two of them combined, I would rather have Trump in office. I really dislike the guy, but his ideas are more my taste than Clinton's. He also seems sturdier than she is, mentally I mean (and physically too ofc but that doesn't matter).  I also gained more respect for Donald Trump over the past week or two.  I don't know how many of you are aware, but Louisiana was recently affected by a very bad flood. As natural disasters do, it destroyed housings and people's personal belongings and took lives. The damage to them was nowhere near as bad as that, but some of my family was affected by this flood, which I guess could give me a bit of a bias.    Donald Trump personally went down to Baton Rouge and handed out toys for children, food, and clothes, among other things. He also made a contribution fund to the state's flood relief charity. What did Hillary Clinton do? Go on Jimmy Kimmel and make fun of Trump quotes. Even if it was only to give himself a better name, the fact that he was so generous enough to provide for these poor people when Clinton, and even Obama, did not would definitely earn my vote if I were legal enough to participate in elections (which I hate to say because I don't care for both Trump and politics in general).       Though, I'd rather my cat be president. (': #VoteLily2016
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Pink_Cool_Girl
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HILLARY FTW
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