Gas Transport in the Blood COPY

Question 1

What is the O2 content of the systemic arterial blood at sea lvl?

Answer 1

200 ml/L but due to incomplete saturation of arterial blood, oxygen content of arterial blood is about 195 mL/L

Question 2

What is the O2 content of systemic venous blood?

Answer 2

152.2 mL/L

Question 3

About how many mL of O2 enter the blood from the lungs and about how much is consumed by tissues?

Answer 3

50 mL/L/min of O2

Question 4

The amount of physically dissolved O2 in the plasma is directly proportional to what?

Answer 4

PO2 in the alveolar air

Question 5

The direction and exert of the reaction between O2 and Hb depends on what 2 factors?

Answer 5

Affinity

PO2

Question 6

What is O2 carrying capacity of the blood?

Answer 6

maximal amount of O2 in the blood when Hb is fully saturated

Question 7

What are 2 factors that affect O2 carrying capacity in the blood?

Answer 7

Hb content (mainly)
Effects of dissolved O2 (Po2)

Question 8

What is Hb saturation?

Answer 8

fraction of total Hb molecules in the form of oxyHb

Question 9

Hb saturation equation.

Answer 9

Question 10

What are some factors that affect HbO2 dissociation curve by shifting it to the right?

Answer 10

Increase PCO2
Increased T
Increased DPG
Decreased pH

vice versa to the left

Question 11

Describe the dislocation curve when there is CO?

Answer 11

Slight shift to the left and decrease in oxygen carry capacity so plateau is lower

Question 12

Be able to reproduce this chart.

Answer 12

Draw out chart again