Maximum voluntary ventilation is -
25 L/min
50 L/min
100 L/min
150 L/min
Ans. is 'd' i.e., 150 L/min Pulmonary Ventilation/Respiratory Minute Volume (RMV) (RMV = TV x RR)6000ml (6L) =500 x 12The amount of air breathed in and out of lungs every minute. It is product of tidal volume (TV) and respiratory rate (RR). RMV=TVXRRMaximal Voluntary Ventilation (MW) Maximal breathing capacity125-170 L-'minThe maximum amount of air which can be breathed in and out of lungs by forceful respiration in one minute.Alveolar ventilation = (TV - Dead space volume) x RR4.2 litersThe amount of air utilized for gaseous exchange every minute.Total dead space/physiological dead space= Anatomical dead space + Alveolar dead space * In normal adult Physiological dead space = Anatomical dead spaceo Anatomical dead space - The conducting part where gaseous exchange does not take place. It is volume of respirator}.' tract from nose up to terminal bronchiole. It is 150mLo Alveolar dead space -Those alveoli which are non functioning and those which do not receive adequate blood flow.Closing volumeThe lung volume, at which, no further air can be expelled by expiratory effort.
Respiratory System