Learning about Gas Exchange Takes My Breath Away... Literally.
We have arrived at the lung- If you walk inside and to the right, you will hit body tissue full of red blood cells containing oxygenated blood: full of oxygen and circulating around the blood vessels. The left is the heart- but we will travel there later.
When you travel inside you might stumble a little bit over the chairs- dont worry that is just the carbon dioxide within the oxygenated blood.
As you breath in and out, red blood cells travel up through the single cell walled capillary. As your alveoli exchanges gas through your respiratory center your chemoreceptors sense the oxygen, carbon dioxide and any other chemicals in your blood.
As you can see the respiratory center is crowded by the working lung stretch receptors, these are different than muscle receptors which contract and release- such as the lung contracts and releases air out.
That is the gist of our day here at the lung and the respiratory center, we'll see you next time when you breathe in again.