Rate of Respiration ... ?

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b0bcat
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Rate of Respiration ... ?

Post by b0bcat » Sun Mar 18, 2007 11:15 pm

What controls the rate of respiration in humans? Oxygen or Carbon Dioxide or both? :?:

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pankaaj
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Post by pankaaj » Mon Mar 19, 2007 11:10 am

I think co2.
As it is first involved in the reaction.
Take it with a pintch of salt!

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Post by Darby » Mon Mar 19, 2007 2:46 pm

Your hypothalamus tracks CO2 levels for your brain's breathing control centers. Since CO2 is dissolved in the plasma, it's easier to detect than oxygen, which is linked to proteins in the red blood cells.

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Poison
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Post by Poison » Mon Mar 19, 2007 7:44 pm

Almost all of the O2 is carried by Hb. But this is not the same for CO2. So your answer is CO2.
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Post by Jelanen » Tue Mar 20, 2007 1:51 am

CO2 through blood pH. Lower pH means a greater amount of dissolved CO2 (as carbonic acid) so triggers an increase in respiration.
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Post by lochnessmonster » Wed Mar 21, 2007 12:19 pm

Carbon dioxide is carried through your plasma as Hydrogen Carbonate ions. As Hydrogen carbonate is an acid, this means that the pH can be detected. If there is a low pH detected by the hypothalmus then it tells you to respire more.
I think :p

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Post by b0bcat » Fri Mar 23, 2007 4:32 am

Thanks for the info!

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