INFLUENCE OF ANALYZERS ON ORTHOSTATIC STABILITY IN HUMAN ONTOGENESIS

A comprehensive study of anatomical-functional peculiarities of the cranial bones promotes implementation of new methods of performing radical and reconstructive-restorative surgery on the face and cranium. Objective: to determine peculiarities of formation of the hard palate folds structure in the fetal and early neonatal periods of human ontogenesis. Materials and methods. The study was conducted on 53 specimens of dead fetuses from 4 to 10 months of development and on 9 specimens of dead neonates by means of macro- and micro-section, preparing histological and topographic-anatomical sections, and morphometry. Formation of the hard palate folds during the second and third trimesters of the intrauterine development was found to consist of the following stages: epithelial thickening, penetration into the adjacent mesenchyme originating the rudiment of the fold; smoothing of the basal membrane and epithelial outgrowth over the surface with formation of the primary fold; condensation of mesenchyme cells under the fold apex; formation of fibrous stroma inside of the fold which is a peculiar core; epithelial smoothing to even thickness similar to that one embracing the areas between folds with formation of the final fold. At the end of the third trimester of the intrauterine development posterior transverse palatine folds become less marked, some of them disappear, and the anterior ones become more marked, closer and pressed one to another.

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Morphometric parameters of pelvis in perinatal period of human ontogenesis.

Morphologia ◽

10.26641/1997-9665.2016.3.67-70 ◽

2016 ◽

Vol 10 (3) ◽

pp. 67-70

Author(s):

А. V. Vasylchyshyna ◽

Т. V. Khmara ◽

М. О. Ryznychuk

Keyword(s):

Perinatal Period ◽

Morphometric Parameters ◽

Human Ontogenesis

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FETAL ANATOMY OF PARATHYROID GLANDS

Wiadomości Lekarskie ◽

10.36740/wlek202001109 ◽

2020 ◽

Vol 73 (1) ◽

pp. 52-57 ◽

Cited By ~ 2

Author(s):

Lesia Ya. Lopushniak ◽

Тatiana V. Khmara ◽

Оleh М. Boichuk ◽

Mariana A. Ryznychuk ◽

Leonid V. Shvyhar ◽

...

Keyword(s):

Jugular Vein ◽

Age Groups ◽

Parathyroid Glands ◽

Brachiocephalic Vein ◽

Human Fetuses ◽

Crown Rump Length ◽

Fetal Period ◽

External Structure ◽

Human Ontogenesis ◽

The Right

The aim: To study the forms of anatomical variability of the external structure of the upper and lower parathyroid glands in the fetal period of human ontogenesis. Materials and methods: The study involved 48 specimens of human fetuses with 81,0-375,0 mm of crown-rump length (CRL). The study was conducted by means of macromicroscopic preparation, morphometry and variation statistics method. Results: The age and individual anatomical variability, complex way of development and formation of synotopic embryotropographic correlations of the upper and lower parathyroid glands in the prenatal period of human ontogenesis create numerous prerequisites for the emergence of variants of their external structure and topography in the fetuses of both different and the same age groups. Conclusions: There is a significant anatomical variability of the upper and lower parathyroid glands in 4-10-month-old fetuses, which is manifested by varieties of their shape and topical location. Aplasia of the upper parathyroid glands, which was found in two human fetuses aged 7 months, was due to the fetures of their organogenesis and the formation of syntopy in the embryonic and prefetal periods of their development. Parathyroid glands are mainly supplied with blood by the branches of the inferior thyroid artery. The branches of the upper thyroid artery and the arteries of adjacent organs: larynx, trachea and esophagus are involved in the blood supply. The right and left inferior thyroid veins are tributaries of the corresponding brachiocephalic vein, paired (right and left) superior and middle thyroid veins are those for the internal jugular vein.

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Formation of larynx topographic-anatomic relations with neck organs and structures in the intermediate fetal period of ontogenesis

Science and Innovations in Medicine ◽

10.35693/2500-1388-2019-4-4-16-20 ◽

2019 ◽

Vol 4 (4) ◽

pp. 16-20

Author(s):

Elena D. Lutsay ◽

Maksim I. Anikin ◽

Nuria I. Murtazina

Keyword(s):

Thyroid Gland ◽

Hyoid Bone ◽

Cervical Vertebrae ◽

Cervical Esophagus ◽

Prenatal Period ◽

Fetal Period ◽

Topographic Anatomy ◽

Study Material ◽

Modified Method ◽

Human Ontogenesis

Objectives - to present topographic and anatomic characteristics of the larynx relationship with neck organs and structures in the intermediate fetal period of human ontogenesis. Material and methods. The study included 85 organocomplexes of the fetuses neck of both sexes, from the 14th to the 27th week of development. The study material was divided into 2 age periods: the first group - fetuses aged 14-20 weeks; the second group - 21-27 weeks. The classical morphological techniques were used: (macromicroscopic preparation, modified method of saw cuts according to N.I. Pirogov, histotopographic method). Results. Larynx syntopy with thyroid gland, cervical esophagus, thymus, submandibular glands was described in detail. Larynx skeletotopy with incisurae jugularis sterni, cervical vertebrae, hyoid bone, mandible was described quantitatively. Conclusion. The data, obtained as a result of the study, supplement the data on the topographic anatomy of larynx and some neck organs and structures in the prenatal period of human ontogenesis. The revealed formation features of larynx and other neck organs and structures topography can be used in the study of intravital anatomy.

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