The objective of the study was to conduct a comparative assessment of the morphometric parameters of the dental and basal maxillary arches depth on preparations of male skulls, depending on the craniotype. Material and methods . The study was performed on 106 preparations of male skulls of the first and second periods of adulthood with physiological occlusion of the teeth. The cephalic index was defined as the ratio of the lateral size of the cerebral cranial region to its longitudinal size. The depth of the dental arch was measured from the point located at the center of the cutting edge of the medial incisor to the point of intersection with the line connecting the distal surfaces of the crowns of the teeth at the level of the canines, first premolars, second premolars, first molars, second molars. The depth of the basal arches was measured from the most prominent points between the medial incisors from the vestibular and lingual sides of the jaws to the point of intersection with the line connecting the distal surfaces of crowns of canines, premolars and molars. The  results of the study . The minimum and maximum limits and the average indicators of the dental and basal arches depth at the level of canines, premolars and molars were determined. A comparative analysis of indicators of the dental and basal arches revealed that on the mescephalic and dolichocephalic skulls the basal arches depth at the level of the canines was larger than the dental arches depth (p < 0.01). The dental arches depth was larger than the basal arches at the level of premolars, and did not depend on the criniotype (p < 0.001). At the level of the first molars, the basal arch depth at the palatal side was larger than the index of the dental arch (p < 0.05). At the level of the second molars, the dental arch depth was larger than the basal arches depth of both surfaces (p < 0.05 and p < 0.001). Conclusion . It was concluded that the dental arches depth of brachycephalic and dolichocephalic was significantly larger than the basal arch depth. The similarity of the basal arches depths at each measurement level in all craniotypes was revealed.

155 students aged 17 to 20 years were selected for this research. Following the procedure of M. Chernorutskii based on the value of the index Pine, all the subjects were divided into three groups (asthenic, normosthenic and hypersthenic girls). Central hemodynamic parameters (heart rate, blood pressure, stroke volume and cardiac output) and the level of adaptive potential was analyzed. The effect somatotype on functioning of the cardiovascular system was determined. The tendency of increase of blood pressure with an increase in overall body size was identified. The signs of the more advanced cardiovascular compensation abilities were shown in asthenic girls. Adaptive potential index showed a satisfactory adaptation of the cardiovascular system in girls of all body types.

The article deals with the research of the longitudinal arch of the children foot. The original hardware and software system is used. There were 1 561 persons observed (199 children of the first childhood, 394 people of the second childhood, 252 teenagers, and 716 persons of youthful age). The somatotype in each group of the girls and the boys was studied. In the period of the first childhood the gender distinctions of the longitudinal arch of the foot haven't been revealed, at the same time the somatotypical distinctions are found. The changes of the indexes and K-coefficient demonstrate the rising in the longitudinal arch in aged group from 4 to 7 years. The gender distinctions appear in the period of the second childhood and the somatotypical significant distinctions of the foot longitudinal arch increase in comparison to the first childhood period. The K-coefficient is observed to be higher in case of the boys-teenagers in comparison to the girls. This is the evidence of the lower position of the longitudinal arch of the foot in boys' case. The youthful period is characterized by the ontogenetical completion of the formation of the longitudinal arch of the foot and by its somatotypical and gender distinctions being most vividly expressed.

The emergence and development of lateralization of functions of the cerebral hemispheres in ontogenesis, its impact on the effectiveness of training and role in the organization of psycho-physiological bases of human individuality are of great interest to Russian and foreign researchers. However, contemporary sources have few works concerning asymmetry in tactile perception, and publications dealing with this phenomenon in the age aspect is set out in fragments. The above circumstances have determined the relevance of the topic of this study, the purpose of which was to study the characteristics of the sensory perception of the shape of the geometric figures using hands of both upper extremities in 98 surveyed male aged 13-23. The study found that the lateralization of functions in the field of tactile gnosis ends in adolescence. The left hand independent on age has a more subtle tactile sensitivity in the perception of form. Only in adolescence, the order of execution of tasks affects the efficiency of sensory perception, which indicates a relatively greater lability of the functions of the hemispheres of the brain in adolescents.