MadSci Network: Anatomy

Subject: Does blood pH affect heart rate, and, if so, how?

Date: Mon Feb 27 19:11:45 2006
Posted by Casey
Grade level: undergrad School: No school entered.
City: Coeur d'Alene State/Province: ID Country: USA
Area of science: Anatomy
ID: 1141092705.An

After recording several ECGs, I was able to calculate that my heart rate was 
slower when I was holding my breath for about a minute than during rest under 
normal conditions. Since holding my breath would cause an accumulation of CO2, 
which would cause blood pH to lower, I was wondering if this change in blood pH 
had any part in the slowing of the heart rate.

Re: Does blood pH affect heart rate, and, if so, how?

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