[Characteristics of cholesterol crystallization in bile].

Possibility of crystallization of cholesterol in bile according to the dislocational mechanism is shown. It is supposed that linear defects in the liquid crystalline phase of bile at gallstone disease may serve as dislocations of growth. The critical size of crystallization nuclei is estimated.

[Regularities and differences in the structure of the circulatory bed of the sternum].

The investigation has been carried out in 95 preparations of the anterior chest wall of corpses of humans of either sex aged from newborns to 90. It has been established that the blood supply of all the layers of sternum is brought about by the anterior and medial branches of the internal sternum artery forming subperiosteal plexuses on its anterior and posterior surfaces. The posterior plexus is better developed.