Résumé

The Lymph Nodes (LN) of Ouled-djellal sheep in Algeria were the subject of this study in order to establish the anatomo-topographical and histo-cytological characteristics of these organs, thus highlighting the different morpho-functional areas of the parenchyma of these lymph nodes,
(somatic and visceral). Thanks to the X-ray, we were able to highlight the circulation of the lymph in situ and see the different compartments of this organ. The standard hematoxylin and eosin staining allowed us to confirm the histological structure developed by radiography. The statistical study of different histological functional areas was carried out by the Point S system created by the laws of mathematics. The sheep lymph node represents a unique autonomous form, corresponds to the lymph node typical of other mammals with sign of a certain fusional orientation, the linear and topographic characteristics generally correspond to parameters similar to the lymph node of cattle. Enveloped by a layer of capsule (CP) which integrates inside the parenchyma forming the trabecula (TR), the nature of the relationship with the extra-lymphatic vessels, the lymph nodes of sheep belong to classic type nodes, in which the afferent lymphatic vessels drain directly into the marginal and efferent sinuses which are located in the area of the sub- grids of the subunits, come from the sinus of the hilum and connected to several large lymphatic vessels which are located next to the largest arteries and veins. The follicles have a very clear structure, each segment presents a unit of deep cortex (DCU), of follicles in the cortical and paracortical zone, which is the external part of the DCU and the Medullary Cord (MC), with cells specific for each zone. Moving towards the reticular nucleus. The base of each Lymphoid Follicle (LF) in the lymph node parenchyma shows the unity of the DCU. The main quantitative morphological features of the structural organization of the lymph nodes in sheep. Among the individual cell areas, the maximum relative lymphoid parenchymal area is typical of DCU and MC, and the minimum of lymph nodes.

Information

Item Type:	Journal
Divisions:
ePrint ID:	2270
Date Deposited:	2020-08-18
Further Information:	Google Scholar
URI:	https://www.univ-soukahras.dz/fr/publication/article/2270

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