text: <unk>  of ventilation<unk>  refers to the physiological mechanisms involved in the<unk>  of physiologic ventilation. Gas exchange primarily<unk> s the rate of respiration.
  The most important function of breathing is gas exchange (of oxygen and carbon dioxide). Thus the<unk>  is centered primarily on how well this is achieved by the lungs.
option_0: Control of respiration
option_1: Thermoregulation
option_2: Cardiac cycle
option_3: Heat transfer
option_4: Conservation of energy
option_5: Respiration 
option_6: Dynamical system
option_7: Muscle memory