Respiratory

Question 1

Tidal Volume

Answer 1

Volume of air inhaled and exhaled during normal breathing.

Question 2

Expiratory Reserve Volume

Answer 2

Largest volume of air that can be forcibly expired after the tidal volume.

Question 3

Inspiratory Reserve Volume

Answer 3

Largest volume of air that can be forcibly inspired after normal inspiration.

Question 4

Reserve Volume

Answer 4

Amount of air that cannot be forcibly expired.

Question 5

Vital Capacity

Answer 5

Largest volume of air that an individual can move in and out of the lungs.
VC = IRV + TV + ERV

Question 6

Inspiratory Capacity

Answer 6

Maximal amount of air and individual can inspire after normal expiration.
IC = TV + IRV

Question 7

Functional Residual Capacity

Answer 7

The amount of air left in the lungs after a normal expiration.
FRC = ERV + RV

Question 8

Total Lung Capacity

Answer 8

Sum of all lung volumes.
TLC = IRV + TV + ERV + RV

Question 9

Boyle’s Law

Answer 9

Pressure and volume are inversely proportional.
- P x V = Constant
- Thoracic volume increases, air pressure in airways decreases, air moves into lungs.
- Thoracic volume decreases, air pressure in airways increases, air moves out of lungs.

Question 10

Dalton’s Law

Answer 10

• Law of Partial Pressures
• The total pressure exerted by a mixture of gases is the sum of the pressure of each individual gas.

Question 11

Max number of O2 molecules that can bind to hemoglobin?

Answer 11

4