Notations

Compartments:
HL	Left ventricle
HR	Right ventricle
AL	Systemic arteries
VL	Systemic veins
AR	Pulmonary arteries
VR	Pulmonary veins
W	Total blood volume
Tissue metabolism:
He	Content of hemoglobin in the blood
SpO₂	Saturation of arterial blood
C_H	Oxygen capacity of hemoglobin
RO₂	Oxygen demand
AO₂	Arterial oxygen concentration
VO₂	Venous oxygen concentration
AO₂-VO₂	Arteriovenous oxygen difference
DO₂	Oxygen debt
gO₂	Tissue oxygen delivery
A₁	Total metabolism intensity
A₂	Organism functional status
Arterias:
P_AL	Arterial systemic pressure
P_AR	Arterial pulmonary pressure
V_AL	Arterial systemic blood volume
V_AR	Arterial pulmonary blood volume
G_AL0	Arterial systemic base elasticity
A₉	Arterial systemic tone
ω_AL0	Arterial systemic stressless volume
A₈	Arterial systemic sympathetic sensitivity
Y_HLAL	Arterial systemic conductivity
G_AR0	Arterial pulmonary base elasticity
A₁₉	Arterial pulmonary tone
ω_AR0	Arterial pulmonary stressless volume
A₁₈	Arterial pulmonary sympathetic sensitivity
Y_HRAR	Arterial pulmonary conductivity
Veins:
P_VL	Venous systemic pressure
P_VR	Venous pulmonary pressure
V_VL	Venous systemic blood volume
V_VR	Venous pulmonary blood volume
Y_VLHR0	Venous systemic base conductivity
G_VL0	Venous systemic base elasticity
ω_VL	Venous systemic stressless volume
A₁₁	Venous systemic tone
G_VR0	Venous pulmonary base elasticity
A₁₂	Venous pulmonary tone
ω_VR	Venous pulmonary stressless volume
Y_VRHL0	Venous pulmonary base conductivity
Capillaries:
Q	Capillary systemic blood flow
q	Capillary pulmonary blood flow
Y_ALVL0	Capillary systemic base conductivity
A₃	Capillary systemic sympathetic sensitivity
A₄	Capillary systemic sensitivity to oxygen debt
Y_ARVR0	Capillary pulmonary base conductivity
A₁₃	Capillary pulmonary sympathetic sensitivity
A₁₄	Capillary pulmonary sensitivity to oxygen debt
Neurohumoral control:
γ	Neurohumoral factor
nS	Function of cardiac center activity
nA	Baroreceptor feedback loop characteristic
nD	Weariness receptor feedback loop characteristic
nA	Stress receptor feedback loop characteristic
nV	Respiratory receptor feedback loop characteristic
с₀	Base activity of cardiac center
с₁	Baroreceptor sensitivity of cardiac center
с₂	Respiratory sensitivity of cardiac center
с₃	Weariness sensitivity of cardiac center
с₄	Stress sensitivity of cardiac center
A₁₂	Reactivity of cardiac center
P₀	Baroreceptor sensitivity threshold
S	Stress
Heart model:
P_HL	Left ventricular pressure
P_HR	Right ventricular pressure
k_L	Left ventricular inotropic factor
k_L0	Left ventricular inotropic status
k_R	Right ventricular inotropic factor
k_R0	Right ventricular inotropic status
u₀	Action threshold of Frank-Starling's law
G_HL	Left ventricular wall elasticity
G_HR	Right ventricular wall elasticity
ω_HL	Left ventricular stressless volume
ω_HR	Right ventricular stressless volume
p_HL0	Residual left ventricular pressure
p_HR0	Residual right ventricular pressure
r_HLAL	Regurgitation factor in the aortic valve
r_VRHL	Regurgitation factor in the mitral valve
r_HRAR	Regurgitation factor in the pulmonary valve
r_VLHR	Regurgitation factor in the tricupsid valve
Body parametres:
m	Body mass

Mathematical model > Notations