At 23:26 -0500 02/03/19, kilopascal wrote: >2002-03-19 > >Just a guess, but I would say it is greater. Even though atmospheric >pressure is 760 mmHg, the 130/80 mmHg is relative to the 760 mm. It is >130/80 greater that 760 mm. It is what is known as gage pressure, not >absolute. If it were an absolute pressure, it would be 890/840 mmHg. If it >were less, wouldn't the pressure of the air restrict your blood flow?
Indeed, this famous "blood pressure" is a "blood pressure drop", i.e. the pressure generated by the flow of liquid in small diameter pipes (arteries) and measured not too far from the "pump" (the heart). Am I right ? Louis