Morphometric parameters of human coronary sinus - based on study of 80 human hearts.

The study was carried out on 80 human hearts (64 male and 16 female). The whole material has been divided into 4 groups: I - aged 19-40; II - aged 41-50; III - aged 51-60 and IV - aged 61-70. The venous vascular bed of 80 hearts was injected through the coronary sinus with Duracryl plus (Spofa Dental, Czech Republic) and next corroded. Thus obtained specimens were measured using electronic caliper (MAU-a E 0-150, Horex, Poland). The length of the coronary sinus varied from 15-50 mm (with the mean value of 30 mm in male hearts and 25 mm in female hearts). The caliber of the vessels varied from 7-13 mm. The length of the coronary sinus is not age-dependent, however it is longer in male than female hearts. Generally the caliber of male coronary sinus is bigger than in the female, although it isn't statistically significant.

Application of Duracryl plus for preparation of corrosion casts of venous coronary tree of human heart.

Duracryl Plus is a synthetic resin, self-polymerizing copolymer of methyl methacrylate and acrylate, which is widely used in dental practice. The aim of this study was to apply it to fill the venous vascular beds of human hearts to obtain corrosion cast ready to describe wanted parameters of venous coronary vessels.

Topography of ulnar nerve and its variations with special respect to carpal region.

Ulnar nerve supplies small muscles of the hand and apart from the median nerve is the main coordinator of precise movements performed both in the medical and dental practice. Based on their anatomical and clinical experience, authors revised a knowledge on this nerve with special respect to its topography, variation in the wrist.