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. 2021 Dec 9;12:734311. doi: 10.3389/fphys.2021.734311

TABLE 4.

Values of the parameters used in the compartments of the 0D systemic and pulmonary peripheral circulations.

Upper body Lower body Pulmonary circulation
R2 (mmHg.s.ml–1) 0.97 0.29
Capillaries L2 (mmHg.s2.ml–1) 0.003 0.003
C2 (ml.mmHg–1) 0.03 0.1
R3 (mmHg.s.ml–1) 0.14 0.04
Venules L3 (mmHg.s2.ml–1) 0.001 0.001
C3 (ml.mmHg–1) 0.5 1.5
R4 (mmHg.s.ml–1) 0.03 0.009 0.005
Veins L4 (mmHg.s2.ml–1) 0.0005 0.0005 0.0005
C4 (ml.mmHg–1) 15.0 75.0 17.23
R5 (mmHg.s.ml–1) 0.0005 0.0005
Vena cava L5 (mmHg.s2.ml–1) 0.0005 0.0005
C5 (ml.mmHg–1) 5.0 15.0

Rk: equivalent viscous resistance coefficient (mmHg.s.ml1); Lk: equivalent fluid inertia coefficient (mmHg.s2.ml–1); Ck: equivalent elastic wall compliance coefficient (ml.mmHg–1). Data for the systemic circulation are from Liang et al. (2009a), while data for the pulmonary circulation are adapted from Sun et al. (1997).