Lab Practical II

Question 1

Tidal Volume (TV)

Answer 1

Volume of normal breathing in and out (~500mL of air with each breath)

Question 2

Inspiratory Reserve Volume (IRV)

Answer 2

• Normal inhalation and then a deep breath in as far as you can
• amount of gas individual can inhale above tidal inspiration

Question 3

Expiratory Reserve Volume (ERV)

Answer 3

• normal exhalation then pushing out all the air you can

- amount of gas an individual can exhale beyond tidal expiration

Question 4

Residual Volume (RV)

Answer 4

• Lung volume that cannot be exhaled out

- amount of gas remaining in lungs after max expiration

Question 5

Vital Capacity (VC)

Answer 5

• Deep breath in as much as possible and out as much as possible
• “Deep breath in all the way and blow it out all the way as much as you can”

Question 6

Total Lung Capacity (TLC)

Answer 6

-amount of gas in lungs after maximal inspiration

Question 7

Functional Residual Capacity (FRC)

Answer 7

• amount of gas remaining in lungs after a tidal expiration

- expiratory reserve volume + residual volume

Question 8

Inspiratory Capacity (IC)

Answer 8

• amount of gas an individual can inhale starting at tidal expiration; breath out normally and take deep breath all the way in
  (Tidal volume + inspiratory reserve volume)