What Is Hemoglobin?

By jamie

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6. The Lungs

We get the oxygen that we need through our lungs. Every time we take in a breath, we take in air which contains the oxygen that we need. This oxygen is absorbed through the lining of the lungs where it attached to iron in our hemoglobin so it can then be transported around the body.

Once the oxygen has been absorbed, our heart will then pump to force the oxygen-rich hemoglobin around the rest of the body. The flow of blood continues flowing so that it does a full circuit and arrives at the lungs where the cycle is then continued.

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