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10/4/2013
Physioex 37B

6. MRV __7500__ ml/min =500 tv x 15bmp
7.
Expiratory reserve volume (ERV) does not include tidal volume. Expiratory reserve volume is the amount of air that can be expelled after a normal tidal exhalation. This means that tidal volume is not included in the ERV measurement.

Activity 2
Chart FEV1as % of VC

Radius (MM)

FEV 1 (Ml)

Vital Capacity

FEV 1 %
5.00 3541 4791 73.90
4.50 2303 3143 73.27
4.00 1422 1962 72.47
3.50 822 1150 71.47
3.00 3.00 436 621 10/4/2013
Physioex 37B

6. MRV __7500__ ml/min =500 tv x 15bmp
7.
Expiratory reserve volume (ERV) does not include tidal volume. Expiratory reserve volume is the amount of air that can be expelled after a normal tidal exhalation. This means that tidal volume is not included in the ERV measurement.

Activity 2
Chart FEV1as % of VC

Radius (MM)

FEV 1 (Ml)

Vital Capacity

FEV 1 %
5.00 3541 4791 73.90
4.50 2303 3143 73.27
4.00 1422 1962 72.47
3.50 822 1150 71.47
3.00 3.00 436 621

#7. FEV 1 (%) will decrease as the airway radius is decreased. FEV 1 (%) is the amount of air that can be expelled from the lungs in one second during forced expiration. If the airway becomes smaller, then the resistance to airflow will increase and FEV 1 (%) will become lower.
8. FEV 1 (%) decreases as the radius of the airway is decreased. Airflow increases when surfactant is applied because the resistance to lung inflation has been reduced.

9.
Surfactant is not produced in premature infants. Because surfactant is necessary for the lungs to inflate, it is not normally needed until birth.

Activity 4.
What happened to the lung in the left side of the bell jar?
The lung in the left side of the bell jar deflated. The pressure in the left lung was zero and the pressure in the right lung changed constantly.

10/4/2013
Physioex 37B

6. MRV __7500__ ml/min =500