What determines the direction of respiratory gas movement?
Respiratory Gas Exchange:
For humans to make energy, we need oxygen which we obtain through gas exchange in the lungs. Oxygen moves from the air through our lung tissue into the blood and carbon dioxide is released in the opposite direction from the blood to the lungs and into the air as we exhale.
Answer and Explanation:
The concentrations of gases determine which way diffusion occurs during gas exchange. When we breathe in, there is more oxygen in our lungs compared...
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from UExcel Anatomy & Physiology: Study Guide & Test PrepChapter 5 / Lesson 4
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