It might be due to Hamburger's effect( chloride shift). In venous blood, RBC will take up CO2 and CO2 react with water to form carbonic acid ( H2CO3). This acid will then dissociate to form hydrogen ion ( H+) and bicarbonate ion (HCO3-). HCO3- will flow out from RBC and each efflux of HCO3- will be accompanied by influx of Cl-. In some circumstances, some HCO3- and Cl- remain in RBC or maybe the rat eof exchange of HCO3- and Cl- is not the same, and this create water flow into RBC, thus volume of RBC will increase (RBC swells) and hence it's hematocrit value too.
The influx of carbon dioxide in venous blood.
pulmonary arterial blood as it has moce CO2 than venous
arterial
Arterial blood is under direct pressure from the heart and is oxygen rich, which venous blood is oxygen poor and is under low pressure.
The arterial and venous systems are connected in the body tissues by capillaries, and also in the heart.
The arterial and venous systems are connected in the body tissues by capillaries, and also in the heart.
venous and arterial
Venous and arterial
This situation happen because VOLUME OF RBCs in venous blood is high. The volume is increased from arterial blood to venous blood because chloride shift that occurred;relate with increase of carbon dioxide in blood.
Venous blood is oxygen poor (in comparison with arterial blood).
it has more oxygen than arterial blood
Arterial blood have more Oxygen and venous blood have more CO2 except the pulmonary vien which carry oxygenated blood to the heart for pumping to arteries.