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Why pulmonary and systemic circulatory systems are separated

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Please help with the following problem. Provide at least 200 words in the solution.

In mammals and birds, the pulmonary and systemic circulation are functionally separate. Discuss why they are separate and why this may be important. Consider differences in lung tissue including alveoli.

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The following posting helps with a problem regarding anatomy and physiology. This solution provides a discussion about why the pulmonary and systemic circulatory systems are separated in birds and mammals. Solution includes anatomical and functional explanations. The answer is given in 218 words. A reference is included in the solution.

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Problem: In mammals and birds, the pulmonary and systemic circulation are functionally separate. Discuss why they are separate and why this may be important. Consider differences in lung tissue including alveoli.

Solution:
Another commonality between mammals and birds is that they have a four chambered heart. This separation into the four chambers allows for there to exist a division between pulmonary and systemic circulatory ...

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