Lungs do not allow liquid or solid. So how blood goes to the lungs for purification?

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Solution

Dear Student,

In the lungs there is a rich supply of blood vessels through which blood passes. So, blood doesn't really enter into the lungs tissue.
Oxygen is transported in our body through blood. It enters our body via nasal cavity and then get diffused into the blood in lungs and from there it gets transported to the heart which transports it to the whole body. When oxygen reaches any tissue it enters the tissue via diffusion.

Regards

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