Activity 1, Does expiratory reserve volume include tidal Volume? Explain your answer.
Activity 2, What happened to the FEV 1 % as the radius of the airways was decreased? Explain your answer.
Chart 1 ?
Activity 3, What happened to the FEV 1 % as the radius of the airways was decreased?
How has the airflow changed compared to the baseline run?
Premature infants often have difficulty breathiing. Explain why this might be so?
Activity 4, What happened to the lung in the left side of the bell Jar?
How did the pressure in the left lung differ from that in the right lung?
Exlain your reasoning?
How did the total air flow in the trial compare with that in the previous trial in which the pleural cavities were intact?
What do you think would happen if the two lungs were in a single large cavity instead of seperate cavities?
Did the deflated lung reinflate? Explain your answer.
Why did lung function in the deflated (left) lung return to normal after you clicked Reset?
Acitivity 5, What happens to Pco2 during rapid breathing? Explain your answer.
What happens to Pco2 during the entire time of the rebreathing activity?
Did the depth of the breathing pattern change during rebreathing? Exlain your oberservation.
What happened to the breathing pattern when normal respirations resume?
Acitivity 6, What do you think is the clinical importance of the FVC and FEV 1 Values?
Why do you think the ratio of these two values is important to the clinician when diagnosing respiratory disease?
FEV 1/FVC x 100% =
Acute Asthma Attack Breathing:
Is the FVC reduced or increased?
Is the FEV 1 reduced or increased?
Which of these two changed more?
Explain the physiological reasons for the lung volumes and capacities that changed in the spirogram for this condition.
How is this condition similar to having emhysema? How is it different?
Emphysema and asthma are called obstructive lung disease as they limit expiratory flow and volume. How would a spirogram look for someone with restricitive lung disease such as pulmory fibrosis?
What volumes and capacities would change in this case, and would these values be increased or decreased?
In an acute asthma attack, the compliance of the lun is decreased, not increased as it was for emphysema, and air flows freely through the bronchioles. Therefore, will the FEV 1/FVC percentage by less than normal, or higher.
Has the FVC reduced or increased? Is it normal?
Has the FEV1 reduced or increased? It it normal?
Which of these two changed more?
Explain the physiological reasons for the lung volumes and capacities that changed in the application of the medication.
How much of an increase in FEV 1 do you think is required for it to be considered significantly improved by the medication?
In moderate aerobic exercise, which do you predict will change more, the ERV or the IRV?
Do you predict that the respiratory rate will change significantly in moderate exercise?
Comparing heavy exercise to moderate exercise, what values do you predict will change when the bodys significantly increased metabolic demands are being met by the respiratory system.
during heavy exercise, what will happen to the lung volumes and capacities that have been considered thus far?
Will the respiratroy rate change? If so, how?
What volumes changed for the most and when?
Compare the respiratory rate during moderate exercise with that seen during heavy exercise.
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