 A VOF-CSF model is developed to model slug flow in capillary channels  Non-uniform mesh is employed to reduce the simulation expenses  A moving reference frame is set moving along or opposite to the gas slug to eliminate the spurious current  The calculated liquid film thickness, slug velocity, and circulation flow ahead the gas slug are all agree very well with literatures Approach and Im...

ROBERT L.LJOHNSON*, M.D., EDWARD D.,FREIS, M.D. AND HAROLD W. SCHKAPER, MB. G Although fairly adequate methods are available for the study of the hemodynamics of the arterial circulation .and overall blood flow to various areas, little is known of the dynamic.changes which occur in the small vessels in man. Aside from the observations of “Thomas Lewis (1) on the terminal circulation in the huma...

Marcello Malpighi is considered to be the founder of microscopic anatomy. For almost 40 years he used the newly invented microscope to study and discover many structures of human body, animals and plants. One of his greatest contributions to science was the establishment by direct observation of an anatomical linkage between arteries and veins, the capillary network, a monumental work that comp...

This study presents data which indicate that evisceration results in a marked decrease in the rate of disappearance of Evans Blue (T-1824) from the circulation of rabbits. Nephrectomy causes a significant increase in the rate of removal of dye from the blood stream. The possible explanations for these changes are considered, and the objections to the use of dye disappearance as a measure of cap...

The research has the following aims: 1: to verify the applicability of capillaroscopic investigation to oral mucosa; 2: to propose oral mucosa as an alternative to the fingernail fold for capillaroscopic investigation; 3: to describe the characteristics of the microcirculation of oral mucosa in healthy subjects. 100 healthy patients were examined. The characteristics of the micro-circulation in...

Retinal capillary networks are critically linked to neuronal health and disease. The ability to perform accurate in vivo examination of human retinal capillary networks is therefore valuable for studying mechanisms that govern retinal homeostasis and retinal vascular diseases. Speckle variance optical coherence tomography (svOCT) is a non-invasive imaging technique that has the capacity to prov...

Human skeletal muscle respiratory chain defects restrict the ability of working muscle to extract oxygen from blood, and result in a hyperkinetic circulation during exercise in which oxygen delivery is excessive relative to oxygen uptake and oxygen levels within contracting muscle are abnormally high. To investigate the role of the muscle microcirculation in this anomalous circulatory response ...

conclusions the early signs and symptoms of iscls may be subtle; therefore the diagnosis can easily be missed and prompt treatment of the syndrome may be postponed. thus, the clinician must consider iscls in differential diagnosis in cases of hypotension, hemoconcentration, and hypoalbuminemia. case presentation we present a 58-year-old female who presented with peripheral edema, leg pain, and ...

Basal isolated canine paw blood flow was equally distributed between arteriovenous anastomosis (AVA) and capillary circulations. Norepinephrine decreased AVA flow by 92% and capillary flow by 41%. Dopamine significantly reduced AVA flow by 94% compared to baseline with a 37% reduction in capillary flow. However, with alpha-adrenergic blockade dopamine decreased AVA flow 66% while capillary flow...

On the basis of the assumption that oxygen delivery across the endothelium is proportional to capillary plasma PO2, a model is presented that links cerebral metabolic rate of oxygen utilization (CMRO2) to cerebral blood flow (CBF) through an effective diffusivity for oxygen (D) of the capillary bed. On the basis of in vivo evidence that the oxygen diffusivity properties of the capillary bed may...