Table 1. Tissue-capillary system particulars.
Parameter | Definition | Source |
---|---|---|
LRBC = 200 μm | RBC region length | [20] |
LCFR = 200 μm | Cell-free region length | [20] |
LTissue = 200 μm | Cerebral tissue length | [20] |
RRBC = 3.25 μm | RBC (erythrocyte) region radius | [21] |
tCFR = 0.75 μm | Cell-free region (CFR) thickness | [21] |
tTissue = 25 μm | Brain tissue thickness | [22] |
ρRBC = 1,160 kg/m3 | RBC mass-density | [23] |
ρCFR = 1,025 kg/m3 | Cell-free region (plasma) mass-density | [24] |
ρTissue = 1,040 kg/m3 | Brain tissue mass-density | [25] |
μCFR = 1.2 × 10−3 kg/m-s | Cell-free region dynamic viscosity | [23] |
DO2RBC = 8.8 × 10−6 cm2/s | RBC O2 diffusivity | [26, 27] |
DO2CFR = 2.29 × 10−5 cm2/s | Cell-free region (plasma) O2 diffusivity | [13, 28] |
DO2Tissue = 1.6 × 10−5 cm2/s | Brain tissue O2 diffusivity | [27] |
DHb = 1.42 × 10−7 cm2/s | RBC hemoglobin diffusivity | [13, 29] |
CBv = 0.3–1.2 mm/s | Capillary blood velocity | [30–32] |
CMRO2 = 200–466i | Metabolic rate of O2 utilization | [27, 33, 34] |
cH = 9.1 mol/m3 | Oxygen carrying capacity of Hb | [32] |
kH = 40 s−1 | Reaction rate of HbO2 dissociation | [35] |
Henry’s law (oxygen) constant | [36] | |
Normalized ΔCBF to ΔCMRO2 | – | |
Normalized ΔCBv to ΔCMRO2 | This study | |
HT = 0.31 | Tube hematocrit | [37] |
iUnits: μmol/100g/min.