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Design a diagram showing all structure of a human heart studied in the chapter,

and explain how blood circulates in and out of the heart to deliver oxygen and nutrients to the cells.

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Inspired air Expired air
Alveolar air
PO,=104 mmHg
pCO,=40 mmHg
CO2 02
CO2 02
Systemic veins
Systemic arteries
(carrying deoxygenated blood)

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