Biomedical Engineering Reference
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Fig. 9 Example of the consequences of physiological calcium fluxes inside the lacuno-
canalicular system (adapted with permission from Kaiser et al. [
58
]). The electro-chemical (in
red) and hydraulic (in brown) velocities may act in the same direction (profile on the top)orina
concurrent way (profile on the bottom)
Table 3 Average coupled parts of the fluid velocity and shear stress on the cell membrane
computed using the physiological values of Kaiser et al. [
58
] (reproduced with permission from
Kaiser et al. [
58
)
Fluid velocity V
a
(m.s
1
)
Shear stress s
a
(Pa)
P
1
:
88
10
6
0
:
22 (52
:
0 %)
(97
:
4 %)
2
:
80
10
9
0
:
02 (4
:
7 %)
C
(0
:
1 %)
E
4
:
80
10
8
0
:
19 (43
:
3 %)
(2
:
5 %)
Total
1
:
93
10
6
0
:
4295
moved from the osteocytes that are imbedded in the bone tissue toward the lining
cells.
As indicated by [
119
], neither diffusion nor stress induced fluid flow could
capable of sustaining an efficient mass transport inside the lacuno-canalicular
system. Based on the estimation of the osteocytic glucose consumption rate, these
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