[Individual porosity characteristics of human tubular bones].

The diaphyses of the tubular bones of seven men aged 40-60 years without the bone pathology were studied. Porosity characteristics of the compact substance were measured in the tibia and the humerus bones by the method of centrifugal porometry. This method is based on the filling of the objects studied with the wetting fluid and sequential removal of it by the centrifugation at increasing values of the centrifugal acceleration; as a result, the values of the radii of the pores and the respective distribution function of the pore volume could be obtained.

[The diameters of the central canals of the osteons in tubular bones (based on data from scanning electron microscopy and centrifugal porosimetry)].

The centrifugal poremetry is based on preliminary filling the pores of prepared samples with the working fluid and the following removal of it from the pores at different fixed velocities of rotation. Measurement of the quantity of the remaining fluid after each rotation allows obtaining the distribution of the pore volume depending on their radius. Since the samples are not destroyed they can be used for measuring the pores diameter in electron micrograph.