A mathematical model for nutritional transport in capillary tissues exchange system in thepresence of magnetic field has been studied. In this case, the cell is deformed. Due to concentrationgradients, the dissolved nutrient in substrate diffuses into surrounding tissue. Theanalytical method is based on perturbation technique while the numerical simulation is basedon finite difference scheme. R...

he circulatory system provides body organs with nutrients nd oxygen and removes carbon dioxide and other waste aterials. Most exchanges occur at the capillary bed. The apillary exchange is not fixed but regulated by several facors such as hydrostatic and oncotic pressure in the vascular nd extracellular compartments.1 Himeno et al2 tried to preict mathematically a steady state tissue volume and...

OBJECTIVE Our aim was to develop a mathematical model that describes the nitric oxide (NO) transport in and around capillaries. The model is used to make quantitative predictions for (1) the contribution of capillary endothelium to the nitric oxide flux into the parenchymal tissue cells; (2) the scavenging of arteriolar endothelium-derived NO by capillaries in the surrounding tissue; and (3) th...

background: considering suggested formula in the references and pcwp measured by catheterism, in the present study the relation between pulmonary capillary wedge pressure (pcwp) measured the flow velocity of mitral valve and mitral annulus motion through tissue doppler imaging is evaluated methods: 52 cases of severe ms were admitted for balloon mitral valvolotomy (bmv) are included in this stu...

The increase intransplacental exchange depends primarily on the great development of the placental vascular bed. The aim of this study was to evaluate the pattern of placental vascular development at day 50 and 100 of pregnancy in goats and the relationship with the vascular endothelial growth factor (VEGF) immunolocalization. The placental morphometric variables: capillary area density, capill...

A Mathematical model for the two phase flow of blood in a narrow capillary surrounded by the tissue has been presented in this paper. We have developed the earlier two phase models of blood flow in capillaries into a model of capillary-tissue fluid exchange system by including porous tissue enclosing the capillary. Blood is not a homogeneous fluid, It is a suspension. The suspended blood cells ...

JOHNSON,JOHN A., AND THEODORE A. WILSON. A model for capillary exchange. Am. J. Physiol. 2 IO(~) : qg-1303. Ig66.A mathematical model based on previous experimental work for material exchange across capillary walls is developed for the case where both capillary flow and transcapillary exchange are taken into account. Solutions are given for very early times and for later times for which an asym...

This model focuses on the behavior of capillary-tissue fluid exchange system when the diameter of the capillary is less than that of red cell. In vivo and in vitro observations indicate that the width of the gap between the red cell and the vessel wall is generally small compared to the radius of the capillary for a single file flow of red cell in narrow vessel, particularly if the vessel diame...

BACKGROUND It is generally assumed that the tissue exchange of antibiotics is flow limited (complete equilibration between the capillary and the tissue water). This assumption may not be valid if there is a large amount of plasma protein binding because the effective capillary permeability depends on the product of the intrinsic capillary permeability (PS) and the fraction of solute that is fre...