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Using the stethoscope to check blood pressure is a technique that’s been used for >100 years! Blood pressure is one of the major vital signs frequently measured by health care workers, and it tells us a lot about our blood circulation. Learn what blood pressure is, how it relates to resistance in a tube, why it is necessary to get oxygen to your cells, and how it can change as you age. We’ll finally put it all together by relating pressure, flow, and resistance in one awesome equation!

15881_Resistance_in_a_tube.html

15883_Adding_up_resistance_problem.html

15884_Flow_and_perfusion.html

15882_Adding_up_resistance_in_series_and_in_parallel.html

15879_What_is_blood_pressure_.html

15880_Learn_how_a_stethoscope_can_help_determine_blood_pressure.html

15886_Blood_pressure_changes_over_time.html

15885_Putting_it_all_together_Pressure_flow_and_resistance.html