Resp 6 Flashcards
1
Q
More than 98% of the oxygen in blood is bound o…and 2% is dissolved in…
A
hemoglobin, plasma
2
Q
blood travels to the tissues that have a low PO2, this causes…
A
draws O2 out of the plasma, which disrupts the equilibrium and causes Hb to release its O2 into the plasma
3
Q
What determines oxygen-Hb binding?
A
PO2
4
Q
Plasma O2 is determined by alveolar PO2, which depends on..?
A
- composition of inspired air
- alveolar ventilation rate
- efficiency of gas exchange
5
Q
Plasma O2 determines
A
% saturation of Hb
6
Q
Amount of hemoglobin determines…
A
total number of Hb binding sites
7
Q
percent saturation of hemoglobin
A
The amount of O2 bound to hemoglobin at any given PO2
