Physiology
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Boundless Anatomy and Physiology
Respiratory System
Gas Exchange
Physiology Textbooks Boundless Anatomy and Physiology Respiratory System Gas Exchange
Physiology Textbooks Boundless Anatomy and Physiology Respiratory System
Physiology Textbooks Boundless Anatomy and Physiology
Physiology Textbooks
Physiology
Concept Version 15
Created by Boundless

External Respiration

Gas exchange in the alveolus

Gas exchange in the alveolus

External respiration is a result of partial pressure gradients, alveolar surface area, and ventilation and perfusion matching.

This illustration shows gas exchange in the alveolus. The drawing shows the blood stream wrapped around aveolus, with oxygen being delivered by the blood to the aveolus and carbon dioxide from the aveolus as the blood flows through it. This is external respiration, a result of partial pressure gradients, alveolar surface area, and ventilation and perfusion matching.

Source

    Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:

    "Gas_exchange_in_the_aveolus_simple_en.svg 1.png."
    https://commons.wikimedia.org/wiki/File:Gas_exchange_in_the_aveolus.svg Wikimedia Commons CC BY 4.0.

Related Terms

  • passive diffusion
  • perfusion
  • Equilibrium
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