ANATOMY OF THE THORACIC AND LUMBAR SPINE IN THE INTERMEDIATE FETAL PERIOD OF HUMAN ONTOGENY

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Aim. To obtain data on the morphology of the thoracic and lumbar spine in the intermediate world of the fetus of human ontogeny. Material and Methods. Torsos of 30 human fetuses of both sexes, aged 16 to 22 weeks, were used. Methods: macromicroscopic dissection; sawing of N. I. Pirogov; histotopographic method; descriptions of quantitative topography, variational-statistical analysis. Results and Discussion. The character of changes in the thoracic and lumbar spine in the intermediate state of the fetus of human ontogenesis was first established, the quantitatively described the dynamics of changes, the range of anatomical differences. size characteristics and arcs of vertebrae, vertebral canal, articular processes, upper and lower vertebral notches are limited was determined. Also, data on the features of the structure of intervertebral discs, the joints of the head of the rib, arched and rib-transverse joints were obtained. Conclusions. Information on the anatomy of the thoracic and lumbar spine in the intermediate fetal state of human ontogenesis allows monitoring of fetal development at later stages of ontogenesis. Data on the quantitative morphometry of the vertebrae of the thoracic and lumbar parts of the spinal column at the 16-20th week of human ontogenesis allow us to orient the implementation diagnostic manipulations and constitute the anatomical foundation of developing fetal surgery.