respiratory important values

Question 1

average volume of air that is exchanged in the lung

Answer 1

6l

Question 2

average volume of oxygen that diffuses per unit time

Answer 2

250ml

Question 3

average volume of carbon(4) oxide that is exchanged

Answer 3

200ml

Question 4

average respiration rate

Answer 4

12-18 breaths per minute

Question 5

normal blood pressure

Answer 5

120/80

Question 6

what muscles are used during inspiration

Answer 6

scalene muscles
sternocleidomastoid
internal and external muscles
abdominal muscles

Question 7

what stage of gestation is surfactant produced

Answer 7

25 weeks and ends at 35

Question 8

what stimulates the production of surfactant during gestation

Answer 8

thyroid hormones and cortisol hormones which increase during pregnancy

Question 9

what is lung compliance

Answer 9

change in the volume of the lung relative to change in pressure of the lung

Question 10

value for anatomical dead space

Answer 10

150 ml

Question 11

normal values for alveolar ventilation

Answer 11

4200ml of air

Question 12

partial pressure calculation

Answer 12

percentage multiplied by the total pressure of oxygen

Question 13

normal partial pressure of alveolar oxygen

Answer 13

100mm/hg or 13.3 kPa

Question 14

normal alveolar partial pressure of carbon dioxide

Answer 14

5.3 kPa or 40 mm/Hg

Question 15

partial pressure of carbon dioxide in the veins

Answer 15

40

Question 16

partial pressure of carbon dioxide in the artery

Answer 16

46

Question 17

partial pressure of oxygen in veins

Answer 17

40

Question 18

side note for systemic circulation

Answer 18

partial pressure in systemic circulation is the same as venous

Question 19

maintenance of ventilation and perfusion ratio

Answer 19

respiratory sinus arrythmias due to increased vagal activity