Respiratory Physiology - Parameters and Figures

Question 1

I. Parameters for Respiratory system
1. Residual volume

Answer 1

1200 ml (male)
1000 ml (female)

Question 2

I. Parameters for Respiratory system
2. Expiratory reserve volume

Answer 2

1200 ml (male)
800 ml (female)

Question 3

I. Parameters for Respiratory system
3. Inspiratory reserve volume

Answer 3

3100 ml (male)
1900 ml (female)

Question 4

I. Parameters for Respiratory system
4. Tidal volume

Answer 4

500 mL

Question 5

I. Parameters for Respiratory system
5. Vital capacity

Answer 5

4800 ml (male)
3200 ml (female)
=> Vital capacity (VC = IRV + ERV + VT)

Question 6

I. Parameters for Respiratory system
6. Total Lung Capacity

Answer 6

6000 ml (male)
4200 ml (female)
=> TLC = All Lung Volumes Combined)

Question 7

I. Parameters for Respiratory system
7. Functional residual capacity

Answer 7

= ERV + RV
= 2400 mL

Question 8

I. Parameters for Respiratory system
8. Volume of dead space

Answer 8

150 mL

Question 9

I. Parameters for Respiratory system
9. Alveolar ventilation

Answer 9

4900 mL/min

= respiratory rate (14/min) x Valveolar (350mL) = 4900 mL/min

Question 10

I. Parameters for Respiratory system
10. Intrapleural pressure and alveolar pressure during inspiration (Transpulmonar pressure)

Answer 10

Intrapleural: from -4 mmHg to -7mmHg
Alveolar: from 0 mmHg to - 0.7 mmHg

Question 11

I. Parameters for Respiratory system
11. Intrapleural pressure and alveolar pressure at the end of inspiration

Answer 11

Intrapleural: -7 mmHg.
Alveolar: 0 mmHg

Question 12

I. Parameters for Respiratory system
12. Intrapleural pressure and alveolar pressure during expiration

Answer 12

Intrapleural: from -7mmHg to -4 mmHg
Alveolar: from -0.7 mmHg to 0 mmHg

Question 13

I. Parameters for Respiratory system
13. Intrapleural pressure and alveolar pressure at the end of expiration

Answer 13

Intrapleural: -4 mmHg.
Alveolar: 0 mmHg

Question 14

I. Parameters for Respiratory system
14. PO2 and PCO2 of the alveolar gas

Answer 14

PO2 = 100 mmHg
PCO2 = 40 mmHg

Question 15

I. Parameters for Respiratory system
15. PO2 and PCO2 in the arteries

Answer 15

PO2 = 95 mmHg
PCO2 = 40 mmHg

Question 16

I. Parameters for Respiratory system
16. PO2 and PCO2 in the veins

Answer 16

PO2 = 40 mmHg
PCO2 = 46 mmHg

Question 17

I. Parameters for Respiratory system
17. Concentration of oxygen in the arteries

Answer 17

Arteries = 200 ml O2 / L blood (at 97% Hb saturation = maximum)

Question 18

I. Parameters for Respiratory system
17. Concentration of oxygen in the veins

Answer 18

Veins = 150 ml O2 / L blood (at 75% Hb saturation = maximum)

Question 19

I. Parameters for Respiratory system
18. O2 consumption in resting condition

Answer 19

250 mL O2/min

Question 20

I. Parameters for Respiratory system
19. CO2 production in resting condition

Answer 20

210 mL CO2/min

Question 21

II. Figures for Respiratory Physiology
30. Graphic representation of static lung volumes. Give normal values on Y axis!

Answer 21

Question 22

II. Figures for Respiratory Physiology
31. Real-time tracing of tidal volume, alveolar pressure and intrapleural pressure in eupnoe (normal tidal breath). Give phases of respiration on X axis and normal values on Y axis!

Answer 22

Question 23

II. Figures for Respiratory Physiology
32. Time-related spirogram of forced expiration. Mark FEV1 and vital capacity on Y axis and give corresponding time values on X axis!

Answer 23

Question 24

II. Figures for Respiratory Physiology
33. Changes in ventilation during physical exercise. Give duration of the exercise on X axis and normal values on Y axis!

Answer 24

Question 25

II. Figures for Respiratory Physiology
34. Changes in minute ventilation in relation with alveolar pCO2. Give values on both axes!

Answer 25

Question 26

II. Figures for Respiratory Physiology
35. Changes in minute ventilation in relation with alveolar pO2. Give values on both axes!

Answer 26

Question 27

II. Figures for Respiratory Physiology
36. Respiratory flow-volume relationship during normal and forced respiration.

Answer 27