Research Article

An Autonomic Nervous System Model Applied to the Analysis of Orthostatic Tests

Table 2

Systemic circulation.

Parameter valueSourceUnstretched volumeSource

Aorta
C0.219 mL/mmHg[27]0 mL[28]
R0.067 mmHg s/mL[27]
I0.00082 mmHg s2/mL[27]

Arteries
Head-arms
C0.73 mL/mmHg[29]240 mL[29]

Abdomen
C0.21 mL/mmHg[30]274 mL[30]

Legs
C1.28 mL/mmHg[29]151 mL[29]

Arteriols
Head-arms
R3.6 mmHg s/mL[26]

Abdomen
R3.307 mmHg s/mL[26]

Legs
R3.9 mmHg s/mL[26]

Veins
Head-arms
C8 mL/mmHg[26]650 mL[26]
R0.23 mmHg s/mL[31]

Abdomen
C43.11 mL/mmHg[31]1121 mL[30]
R0.038 mmHg s/mL[26]

Legs
C19 mL/mmHg[26]350 mL[26]
R0.3 mmHg s/mL[26]