The Human Body Chemical Plant reactions membrane separations filtration pumps valves fluid flow heat transfer evaporation
The Cardiopulmonary System Lungs Heart Blood flow
Lungs Membrane Separation breathe air in transfer oxygen to blood exchange for CO2 exhale CO2 Topic relevant to: Principles I - sophomore year Separation Processes - junior year
Heart Pump Pumps blood throughout body Does mechanical work Requires energy Topic relevant to Fluid Transport- sophomore year
Blood Flow Fluid Flow carries oxygen to organs and cells carries CO2 away from organs and cells important part of temperature control Topic Relevant to: Principles I - sophomore year Fluid transport - sophomore year Heat Transfer - junior year
Cells Small reactors burn food for energy need oxygen to burn food C6H12O6 + 6O2 6CO2 + 6H2O + energy Food + oxygen CO2 + water + energy
Oxygen - energy relationship Measure amount of oxygen breathed Lungs transfer oxygen to blood Blood carries oxygen to cells Cells burn oxygen for energy Calculate energy expended 4.875 kcal / liter O2
What you will do Measure Calculate Heart rate (beats per minute) Blood Pressure Breathing rate (breaths per minute) Calculate Oxygen consumption rate (liters / minute) Blood flow rate Heart stroke volume (liters / beat) Energy expenditure Efficiency
Compare Resting vs. Exercise