Related Experiment Video
Updated: Aug 12, 2026

Cerebral Blood Oxygenation Measurement Based on Oxygen-dependent Quenching of Phosphorescence
Published on: May 4, 2011
Calculation of oxygen pressures in tissue with anisotropic capillary orientation. II. Coupling of two-dimensional
1Department of Physiology, Faculty of Medical Sciences, University of Nijmegen, The Netherlands.
Abstract:
The mathematical descriptions of oxygen transport in terms of two-dimensional diffusion in planes perpendicular to the capillaries can be coupled for an ensemble of planes to yield a three-dimensional description. In tissue with a distinct orientation of the oxygen supplying structures, the capillaries, this leads to a description of oxygen pressure in a whole tissue volume. Muscle tissue is an example of such tissue. The method allows calculation of oxygen pressure (pO2) at any location in the volume. Tissue volume oxygen status can be assessed by constructing a pO2 histogram, gathering pO2's at a large number of locations in the tissue.
Related Concept Videos
Pressure of Fluids
Assessment of Diffusion and Perfusion
The Role of Diffusion in Respiration
Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration. In the respiratory system, this principle...
Fluid Pressure over Flat Plate of Constant Width
The resultant force...
Capillarity in Fluid
Surface tension is crucial to capillarity. It results from cohesive forces between liquid molecules at the liquid-air boundary, forming a skin that resists external forces. When the capillary tube...
Basic Equation for Pressure Field
Pressure Variation in a Fluid at Rest
When measuring pressure at two different levels within the fluid, the difference in pressure...

