[Organization of the osseous nasal septum and its homologues. IV-C. Alar bone composed of sub-nasal and septal bones. Nasal septum and axial palate complex (represented by artiodactyla and leporidae)].

The aim of this investigation was the study of the development changes of the osseous nasal septum and para-sphenoid systems in adult pigs, domestic cattle and the comparison with the control skull-group of 10 deer and 15 hares. The methodology was described elsewhere. In paired-hoof mammals was found that the alar bone is biomechanically composed system. It represents four segments: three of septum bone and one as subnasal bone. In examined mammals the degree of integration of sphenoid septum and alar bone ones was various. In fishes, amphibians, birds and paired-hoof mammals there are the axially palate system too. The para-sphenoid mechanically integrated itself with the hard palate.