Human Physio Notes Chapter 39
After alveoli are ventilated wit fresh air, the next step is diffusion of oxygen from the alveoli into the pulmonary blood and
diffusion of carbon dioxide out of the blood.
o Diffusion is simply the random motion of particle
Human Physio Notes Chapter 40
Once oxygen has diffused from the alveoli into the pulmonary blood, it is transported to the peripheral tissue capillaries almost
entirely in combination with hemoglobin.
o The presence of hemoglobin in the red blood cells a