Peculiarities of the macro-microscopic structure of functional segments of lymphatic nodes parenchyma in meat-producing rabbits
Journal Title: Біологія тварин - Year 2018, Vol 20, Issue 3
Abstract
The features of histoarchitectonics of functional zones and segments in the lymph nodes of mature meat rabbits have been established on the example of Hyplus cross rabbits. Somatic lymph nodes of rabbits are represented by dense, compact formations, completely isolated, while visceral — a plurality of aggregations of different sized nodes that form packets or clusters in adipose tissue, without creating conglomerates. Lymphoid parenchyma is characterized by a pronounced morphological polarity, with an increase in its volume and density in the direction of the mouth of the tiny lymphatic vessels, with the formation, respectively, of a dense cortical and rarefied cerebellum of the nodes. Parenchyma nodes are divided into segregated cortical sinuses and trabeculae segments or compartments. It is determined that for the segments of the lymph nodes the polar structure is characteristic, their extended pole is formed from the deep cortex units and located around these units of the lymph nodes, the opposite, more narrowed edge of the segment, constructed from brains and lymphatic spaces between them (medullar sinuses).On the periphery of the deep crust units, the lymphatic nodules are round-oval in shape, and in the region of the cerebral cords — round-cylindrical. The sine system is sufficiently developed, organized as an "irrigation system" that connects each vessel with a clearly defined functional compartment, forming wide labyrinths that are better expressed in the visceral lymph nodes, in the brain sines, which is probably associated with a more significant antigenic load. In the lymph nodes of rabbits, the basis of each lymphoid lobe is the centers of deep crust units with reactive centers of proliferation of T-lymphocytes, their periphery is represented by the lymphocyte transit zone and lymph nodes the deep crust units border with the cerebral cords.
Authors and Affiliations
P. M. Gavrilin, I. I. Gibert
Keywords
Related Articles
- EP ID EP404132
- DOI 10.15407/animbiol20.03.009
- Views 49
- Downloads 0
Optimization of polymerase chain reaction conditions for studies of paddlefish (Polyodon spathula) microsatellite DNA
Paddlefish (Polyodon spathula) is a valuable object of artificial breeding and raising in fish farms in Ukraine. The study of genetic variability of paddlefish populations using new molecular-genetic approaches with micr...
Specificity of cell-envelop proteinase of lactococci toward the casein fractions
The specificity of cell-envelop proteinases of lactococci toward the casein fractions plays an important role in formation the parameters of quality of fermented dairy products, as well as in the creation of natural orig...
Correction of electrolyte imbalance in sport horses
The article presents the results of studies on the correction of electrolyte balance in sports horses during physical activity of medium intensity and shows the positive effect of the use of minerals on rehydration. Aft...
Ovary morphology in ewes in different months of year
The morphology of ovary of domestic sheep (Ovis aries) of Ascanian Merino breed in different month of year was studied in 2 experiments. In the first (1999–2013) the ovaries in 145 ewes were post-mortally or laparoscopic...
The content of fatty acids in the bodies of Cyprinus carpio L. in different conditions of life
An important role in the processes of adaptation of living organisms to extreme conditions of the environment belongs to fatty acids (FA). By the method of gas chromatography with a flame-ionization detector we have exam...