Diffusion path of O2 and CO2 in the lungs. "Gases move across the blood-gas interface (alveolar-capillary membrane) by diffusion, following Fick's law.
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This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.