Modelling > Blood circualtion parameters > Oxygen metabolism > Hemoglobin concentration in the blood

The parameter describes a functioning of respiratory system. Its physical meaning – relative arterial oxygen concentration. It is included in the equation system describing oxygen metabolism as the value He

(71)

where factor С_H is oxygen capacity of hemoglobin.

(4)

In this equation (4) the value of tissue oxygen delivery gO₂ is proportional to values of tissue blood flow Q and arteriovenous oxygen difference AO₂ - VO₂. In its turn a change speed of venous oxygen concentration is proportional to the difference between tissue oxygen delivery and oxygen demand (5)

(5)

A change speed of oxygen debt is proportional to the difference between tissue oxygen demand and tissue oxygen delivery (6)

(6)

The parameter He is used for modelling of pathologic mode "anaemia". The main characteristic of this mode is a reduction of its value in comparison with the normal one.