2/20/26, 2:38 PM PhysioEx Exercise 7 Activity 2
PhysioEx Lab Report
Exercise 7: Respiratory System Mechanics
Activity 2: Comparative Spirometry
Name: Morris
Date: 20 February 2026
Session ID: session
Pre-lab Quiz Results
You scored 100% by answering 5 out of 5 questions correctly.
1 A normal resting tidal volume is expected to be around
You correctly answered: 500 ml.
2 Which respiratory process is impaired the most by emphysema?
You correctly answered: expiration.
3 During an asthma attack
You correctly answered: inspiration and expiration are impaired.
4 During moderate aerobic exercise, which respiratory variable increases the most?
You correctly answered: tidal volume.
5 Inhaler medications for an asthma patient are designed to
You correctly answered: dilate the patient's bronchioles.
Experiment Results
Predict Questions
1 Predict Question 1: With emphysema, there is a significant loss of elastic recoil in the lung
tissue and a noticeable, exhausting muscular effort is required for each expiration.
Inspiration actually becomes easier because the lung is now overly compliant.
Using the spirogram, calculate the lung value most affected by the emphysema condition.
Your answer: FEV1.
2 Predict Question 2: During an acute asthma attack, airway resistance is significantly
increased by (1) increased thick mucous secretions and (2) airway smooth muscle spasms.
https://media.pearsoncmg.com/bc/bc_0media_ap/physioex/10/ex7/act2/ 1/7
, 2/20/26, 2:38 PM PhysioEx Exercise 7 Activity 2
To which lung value in the spirogram would you see the greatest change in a patient
suffering from an acute asthma attack?
Your answer: FEV1.
3 Predict Question 3: When an acute asthma attack occurs, many people seek relief from the
increased airway resistance by using an inhaler. This device atomizes the medication and
induces bronchiole dilation (though it can also contain an anti-inflammatory agent).
Which lung value remained relatively unchanged when comparing a patient with an acute
asthma attack, acute asthma attack with inhaler, and normal?
Your answer: RV.
4 Predict Question 4: During moderate aerobic exercise, the human body will change its
respiratory cycle in order to meet increased metabolic demands. During heavy exercise,
further changes in respiration are required to meet the extreme metabolic demands of the
body.
Which lung value will change more during moderate exercise, the ERV or the IRV?
Your answer: IRV.
Stop & Think Questions
1 When obstructive lung disease develops, what happens to the FEV1 (%)?
You correctly answered: It decreases.
2 Compared with the normal patient, what happened to the FVC in this patient?
You correctly answered: It decreased.
3 Compared with the normal patient, what happened to the FEV 1 in this patient?
You correctly answered: It decreased.
4 Compared with the normal patient, what happened to the FVC in this patient?
You correctly answered: It decreased.
5 Compared with the normal patient, what happened to the FEV 1 in this patient?
You correctly answered: It decreased.
6 Which value in the spirogram never changed from that of the normal patient?
https://media.pearsoncmg.com/bc/bc_0media_ap/physioex/10/ex7/act2/ 2/7
PhysioEx Lab Report
Exercise 7: Respiratory System Mechanics
Activity 2: Comparative Spirometry
Name: Morris
Date: 20 February 2026
Session ID: session
Pre-lab Quiz Results
You scored 100% by answering 5 out of 5 questions correctly.
1 A normal resting tidal volume is expected to be around
You correctly answered: 500 ml.
2 Which respiratory process is impaired the most by emphysema?
You correctly answered: expiration.
3 During an asthma attack
You correctly answered: inspiration and expiration are impaired.
4 During moderate aerobic exercise, which respiratory variable increases the most?
You correctly answered: tidal volume.
5 Inhaler medications for an asthma patient are designed to
You correctly answered: dilate the patient's bronchioles.
Experiment Results
Predict Questions
1 Predict Question 1: With emphysema, there is a significant loss of elastic recoil in the lung
tissue and a noticeable, exhausting muscular effort is required for each expiration.
Inspiration actually becomes easier because the lung is now overly compliant.
Using the spirogram, calculate the lung value most affected by the emphysema condition.
Your answer: FEV1.
2 Predict Question 2: During an acute asthma attack, airway resistance is significantly
increased by (1) increased thick mucous secretions and (2) airway smooth muscle spasms.
https://media.pearsoncmg.com/bc/bc_0media_ap/physioex/10/ex7/act2/ 1/7
, 2/20/26, 2:38 PM PhysioEx Exercise 7 Activity 2
To which lung value in the spirogram would you see the greatest change in a patient
suffering from an acute asthma attack?
Your answer: FEV1.
3 Predict Question 3: When an acute asthma attack occurs, many people seek relief from the
increased airway resistance by using an inhaler. This device atomizes the medication and
induces bronchiole dilation (though it can also contain an anti-inflammatory agent).
Which lung value remained relatively unchanged when comparing a patient with an acute
asthma attack, acute asthma attack with inhaler, and normal?
Your answer: RV.
4 Predict Question 4: During moderate aerobic exercise, the human body will change its
respiratory cycle in order to meet increased metabolic demands. During heavy exercise,
further changes in respiration are required to meet the extreme metabolic demands of the
body.
Which lung value will change more during moderate exercise, the ERV or the IRV?
Your answer: IRV.
Stop & Think Questions
1 When obstructive lung disease develops, what happens to the FEV1 (%)?
You correctly answered: It decreases.
2 Compared with the normal patient, what happened to the FVC in this patient?
You correctly answered: It decreased.
3 Compared with the normal patient, what happened to the FEV 1 in this patient?
You correctly answered: It decreased.
4 Compared with the normal patient, what happened to the FVC in this patient?
You correctly answered: It decreased.
5 Compared with the normal patient, what happened to the FEV 1 in this patient?
You correctly answered: It decreased.
6 Which value in the spirogram never changed from that of the normal patient?
https://media.pearsoncmg.com/bc/bc_0media_ap/physioex/10/ex7/act2/ 2/7
