Multilayer Plastic Reconstruction in the Three-Dimensional Study of the Human Lacrimal Gland

Гринь, Володимир Григорович; Шерстюк, Олег Олексійович; Piliuhin, A. V.; Svintsytska, N. L.; Лавренко, Анна Володимирівна

doi:10.26724/2079-8334-2018-1-63-113-116

Cited by 5 publications

(2 citation statements)

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“…Material and methods. After obtaining the mucous membranes of the FS, their fragments were fixed in phosphate buffered 2.5% glutaraldehyde solution and embedded in the Epon-812 epoxy resin (Bilokon et al, 2014;Hryn et al, 2016;Kostylenko et al, 2007).…”

Section: гістологічні та морфометричні особливості мукоциліарної сист...mentioning

confidence: 99%

Histological and Morphometric Features of the Mucociliary System of the Mucous Membrane of the Inferior and Posterior Walls of the Frontal Sinus in a Norm

Serbin,

Dubyna,

Bondarenko

et al. 2023

bioeco

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The present paper was aimed at the study of the peculiarities of the mucociliary system of the mucous membrane normal human frontal sinus (FS). Object and methods. Cadaveric material obtained from people of both sexes aged 26 to 75 years who died of causes not related to pathology of the paranasal sinuses has been studied in accordance with international guidelines for biological research. Results. The investigated glands are complex alveolar-tubular glands, which consist of a system of excretory ducts with the acini. The findings of our study showed a certain difference between the structure of the acini of the glands on the inferior wall, where they were divided into 2 types. The first type is characterized by the formation of the acini by the cuboidal cells, and the second type by the pyramidal cells. By the secretory products, the glands of the inferior wall are defined as proteinaceous and mucous, and the glands of the posterior wall are mixed. The morphometry showed that the values of the average thickness (µm) of the submucous layer of the posterior wall (PW) on both sides were by 74% lower compared to the parameter for the inferior wall (IW). No significant difference in the outer diameter (µm) of the acini of the glands of the specified walls on both sides was found.

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Section: гістологічні та морфометричні особливості мукоциліарної сист...mentioning

confidence: 99%

Histological and Morphometric Features of the Mucociliary System of the Mucous Membrane of the Inferior and Posterior Walls of the Frontal Sinus in a Norm

Serbin,

Dubyna,

Bondarenko

et al. 2023

bioeco

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“…There exists a conception that most of the ducts exiting from the orbital lobe reach their end points through the palpebral lobe. Excretory ducts of the orbital part of the gland run between the lobes of the palpebral part and, together with its ducts (total number about [15][16][17][18][19][20], open the tiniest orifices into the outer half of the upper conjunctival fornix [2;20]. These descriptions do not provide a clear answer about the topography of the excretory ducts of the orbital and palpebral lobes, each of which has its own capsule and location.…”

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confidence: 99%

General Biological Patterns of the Structure of Human Major and Minor Lacrimal Glands and Under-Researched Aspects of Their Morphology

Каценко

Шерстюк

Svintsytska

et al. 2019

Act. Probl. of the Modern Med.

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The article discusses the fundamental and modern data on the structure and functions of human large and small lacrimal glands. The palpebral lobe of the human lacrimal gland consists of numerous fairly large lobules, which are almost of identical structure. Each lobule has several axial excretory intralobular ducts. Their branches along the whole length are surrounded by secretory epithelial components in the form of terminal sections and the corresponding finniest terminal lacrimal ducts that are grouped into the grape-bunch structural elements. Blood supply to the capillary network of the lacrimal gland and its alveoli is carried out by several arterioles that run through very large interstitial spaces rich in fatty tissue. Each arteriole supplies several adjacent lobules. The network of capillaries can be described as integral and is not divided into segments that would correspond to sublobular units. Blood capillaries are located in the spaces between several adjacent terminal portions. Thus, the fact of close syntopic similarity of the intralobular excretory ducts and postcapillary venules has been confirmed. The article poses the appropriateness of more detailed morphological studying of anatomical and topographic characteristics of the lacrimal glands. If has been found out the lack of information on the cellular composition of the wall of the excretory ducts of the lacrimal gland, both in humans and in laboratory rats, in order to compare their morphology and the quality of the secretion they produce. It would be interesting to compare the morphology of the human lacrimal glands and the garder gland in rats to identify general biological characteristics of the structure and functioning.

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Structural organization of the orbital lobe of the human lacrimal gland

et al. 2020

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Structural organization of the orbital lobe of the human lacrimal gland. Ukrainian medical stomatological academy, Poltava, Ukraine. ABSTRACT. Вackground. In the last two decades, interest in the study of the morphology of the human lacrimal glands has increased significantly again and in the conduct of experiments with frequent diagnostics of «dry eye» syndrome in ophthalmology practice in relatively young people. Thus, we believe that this problem is relevant at the present time. Objective. The aim of the study is to study general biological regularities and specific features of the morphology and spatial organization of the excretory duct system and their terminal sections of the human lacrimal gland in syntopic unity with the hemomicrocirculatory bed. Methods. The glands were fixed in a 10% solution of neutral formalin. After traditional embedding in paraffin, histological sections with a thickness of 5 μm were obtained, which were stained with hematoxylin and eosin. A series of histological sections were sequentially photographed, and they served as the basis for the selective study of the necessary structures of the lacrimal gland, as well as two-dimensional photoreconstruction. Results. In our studies, we proceeded from the fact that the lacrimal glands, like the salivary glands, is a polymer organ that has its own specificity of syntopic relationships in three-dimensional space. Therefore, at first research, we needed to identify the level of structural organization of diverse tissues of the human lacrimal gland, which would correspond to the concept of a structural-functional unit. In our opinion, it can be considered a particle of the orbital lobe of the lacrimal gland. Here, the ducts are located radially with respect to the axially intralobular duct. Such a duct is capable of integrating one or another number of alveolar -tubular assemblies resembling typical adenomeres (sublobular unit). Conclusion. Thus, an ordinal analysis of a series of histological sections and a decomposition analysis of photoreconstructions allows us to conclude that the orbital lobe of the human lacrimal gland consists of numerous particles that have practically the same structural principle, and we have previously studied and described lobules of the palpebral lobe jf the lacrimal gland, as well as small salivary glands. Each lobule has several axia l excretory intralobular ducts. Their ramifications throughout are surrounded by secretory epithelial components in the form of terminal sections and the smallest terminal lacrimal ducts corresponding to them, which together form the structural elements of the groin-like shape. The longest and largest in caliber ducts of the lacrimal gland are located outside the aisles of particles. As a result of this structure, on some histological sections, we see only relatively large lumens of the ducts and thei r walls (epithelial zone) in the immediate vicinity of the integumentary epithelium of the conjunctiva, and on others -smallcaliber ducts up to their final saccular extensions, formi...

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Multilayer Plastic Reconstruction in the Three-Dimensional Study of the Human Lacrimal Gland

Cited by 5 publications

References 1 publication

Histological and Morphometric Features of the Mucociliary System of the Mucous Membrane of the Inferior and Posterior Walls of the Frontal Sinus in a Norm

Histological and Morphometric Features of the Mucociliary System of the Mucous Membrane of the Inferior and Posterior Walls of the Frontal Sinus in a Norm

General Biological Patterns of the Structure of Human Major and Minor Lacrimal Glands and Under-Researched Aspects of Their Morphology

Structural organization of the orbital lobe of the human lacrimal gland

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