Measuring Gas exchange Flashcards
what is a Spirometer
a spirometer is used to measure the gas exvchange in the lungs
itr measure the voliume of air inspired and expired by a person
what is the tidal volume
the volume of air in at rest
what is the vital capacity
the maximum voliume of air breathed inspired and expired by an individual
what is ventilation rate
the number of breaths a person take per minute
what is forced expiratory volume
maximun volume of air breathed out in 1 second
why if forced expiratory volume less than the total volume of air in the lungs
there is always residual air that remains
residual air is air that cannot be expired
residual air ensures that the alveoli does not close
what is the equation to calculaten pulmonary ventilation rate
tidal volume x breathing rate
what happens to tidal volume and ventilation rate during exercise
tidal volume and ventila tion rate increase due to the fcat that more oxygen is required for respiration during exersise
