Measuring Gas exchange

Question 1

what is a Spirometer

Answer 1

a spirometer is used to measure the gas exvchange in the lungs
itr measure the voliume of air inspired and expired by a person

Question 2

what is the tidal volume

Answer 2

the volume of air in at rest

Question 3

what is the vital capacity

Answer 3

the maximum voliume of air breathed inspired and expired by an individual

Question 4

what is ventilation rate

Answer 4

the number of breaths a person take per minute

Question 5

what is forced expiratory volume

Answer 5

maximun volume of air breathed out in 1 second

Question 6

why if forced expiratory volume less than the total volume of air in the lungs

Answer 6

there is always residual air that remains
residual air is air that cannot be expired
residual air ensures that the alveoli does not close

Question 7

what is the equation to calculaten pulmonary ventilation rate

Answer 7

tidal volume x breathing rate

Question 8

what happens to tidal volume and ventilation rate during exercise

Answer 8

tidal volume and ventila tion rate increase due to the fcat that more oxygen is required for respiration during exersise