4min chapter

The Proof with Simon Hill cover image

A doctor’s guide to lung health | Dr MeiLan Han

The Proof with Simon Hill

CHAPTER

What's the Main Purpose of Gas Exchange?

The lungs are actually one of the few organs in the body that has two blood supplies. Blood supply really is in service of the body, not the lungs. There is a separate bronchial artery circulation that then feeds gets the lungs what they need to survive and to support the lung a tissues. When we have disease, it not only stresses the lungs, it then stresses the heart,. If the resistance builds up, because the lungs are diseased and it's harder to push blood through the pulmonary arteries, the right side of the heart starts to fail.

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