Effect of respiration on pulmonary capillary blood flow in man.

The influence of the pulmonary arterial pressure on the pulmonary capillary venous pressure in man.

In two cases with a well-defined pulmonary capillary venous pressure pulse, the lobular pulmonary artery was occluded with a balloon while the pulmonary capillary venous pressure was registered. There was no change in the tracing obtained. In two other cases positive pressure respiration almost completely damped out the pulmonary capillary venous pressure variations, but the mean pressure remai...

Mathematical Analysis of MHD Flow of Blood in Very Narrow Capillaries (RESEARCH NOTE)

A mathematical model for blood flow in narrow capillaries under the effect of transverse magnetic field has been investigated. It is assumed that there is a lubricating layer between red blood cells and tube wall. The transient flow of the fit red blood cell surrounded by plasma annulus in the narrow capillary is considered. The analysis of fluid flow between red cell and tube wall, when the ce...

Determination of the pulmonary capillary blood flow in man.

SEVERAL different methods based on respiratory maneuvers have been developed for the measurement of the rate of pulmonary capillary blood flow in man. These methods fall into two groups: (1) those involving the determination of the COo or 02 content of arterial and mixed venous blood from an analysis of alveolar gas—the first of these "indirect Pick methods" was developed by Loewy and von Schro...

A method for estimating instantaneous pulmonary capillary blood flow in man.

Regulation of the pulmonary circulation.

Factors regulating pressure and flow in the lungs are reviewed with particular emphasis on their role in regulating blood flow velocity and distribution within the lung capillaries. The behaviour of the pulmonary arterial, system, alveolar capillaries, and pulmonary venous system are considered individually. The effect of heart disease on lung capillary blood flow is examined.