scholarly journals Особливості будови стравоходу та його лімфоїдної тканини горобця домового (Passer domesticus)

2017 ◽  
Vol 19 (78) ◽  
pp. 26-29
Author(s):  
N.V. Dyshlyuk
Keyword(s):  
Smooth Muscle ◽  
Connective Tissue ◽  
Blood Vessels ◽  
Lamina Propria ◽  
Muscle Tissue ◽  
Lymphoid Tissue ◽  
Passer Domesticus ◽  
Fibrous Connective Tissue ◽  
Smooth Muscle Tissue ◽  
Lymphoid Nodules

The features of the structure of the esophagus and its lymphoid tissue of the house sparrow (Passer domesticus) have been studied. It is shown that its wall is formed by well expressed mucous, muscular and least developed adventitial (serous in the caudal part) shells. The mucosa forms 7–9 longitudinal folds of leaf-shaped and finger-shaped forms directed into the lumen of the esophagus. It consists of epithelium, lamina propria, lamina muscularis and submucosa. The epithelial layer is represented by a multi-layered flat, weakly keratinizing epithelium and is better developed in the cranial part of this organ. Near the proventriculus, it passes into a single-layered cylindrical. In its lamina propria of the mucosa there are bags of numerous large esophageal glands in which mucus is recorded. Their excretory ducts open onto the surface of the mucosal epithelium. The lamina muscularis is intermittent in places, formed by a smooth muscle tissue. The submucosa is weakly expressed and its own plate is formed by a loose fibrous connective tissue with blood vessels. Between the esophagus glands, their excretory ducts and in the submucosa of the tunica mucosa on the border with the tunica muscular are separate clusters of diffuse lymphoid tissue, which are represented by cells of the lymphoid series without noticeable rarefaction and densities. The basis of the diffuse lymphoid tissue is the reticular tissue, the fibers of which, are densely disposed and do not have a definite orientation and form a small grid. In the area of transition of the esophagus to the proventriculus, the esophageal tonsil, which is inherent in many species of birds, is not expressed. In this area in the mucous membrane, only local accumulations of diffuse lymphoid tissue are recorded. There are no prenodules and lymphoid nodules. The tunica muscular of the esophagus is formed by a smooth muscle tissue, which forms the inner–circular and outer – longitudinal layers. Between them, layers of loose fibrous connective tissue and blood vessels are identified. Tunica adventitia (serosa) are formed by a loose fibrous connective tissue, and serosa is also covered by mesothelium.

scholarly journals Histological studies on the oesophageal tonsils of broiler ducks

2020 ◽  
Vol 1 (1) ◽  
pp. 53-56
Author(s):  
Indu V.R. ◽  
Biju S. ◽  
Lucy K. M. ◽  
Maya S.
Keyword(s):  
Connective Tissue ◽  
Lamina Propria ◽  
Lymphoid Tissue ◽  
Histological Studies ◽  
Histological Sections ◽  
Mucosal Glands ◽  
Immunological Protection ◽  
Lymphoid Nodules

Histomorphological study was conducted on the oesophageal tonsils in six broiler Vigova Super-M ducks of six to eight weeks age. The location of the tonsil was at the junction between oesophagus and proventriculus. In histological sections six to eight isolated tonsillar units were seen in the lamina propria near the base of the oesophageal folds. Each tonsillar unit consisted of a crypt lined by lymphoepithelium and surrounded by dense lymphoid tissue. The tonsillar units were seen encapsulated by connective tissue and composed of many large lymphoid nodules separated by internodular areas. The secretory portion of the mucosal glands of the oesophagus were firmly associated with the lymphoid tissue and the cylindrical epithelium was transformed to lymphoepithelium. The oesophageal tonsils offered immunological protection at the entrance of stomach. Keywords: Oesophageal tonsils, Histomorphology, Ducks

scholarly journals HISTOLOGICAL STRUCTURE OF THE KINTAMANI DOG ON THE SEXUAL MATURITY PERIOD

2019 ◽  
pp. 39
Author(s):  
Ni Luh Eka Setiasih ◽  
Putu Suastika ◽  
Luh Gede Sri Surya Heryani ◽  
Ni Nyoman Werdi Susari
Keyword(s):  
Smooth Muscle ◽  
Connective Tissue ◽  
Blood Vessels ◽  
Lamina Propria ◽  
Sexual Maturity ◽  
Single Layer ◽  
Columnar Epithelium ◽  
Histological Structure ◽  
Maturity Period ◽  
Hematoxylin Eosin

The objective of this study was to determine the histological structure of uterus of the kintamani dogs on the sexual maturity period. In this study using five samples of uterine organs of the kintamani dog. The tissue were taken from corpus of the uterine. The histological structure was observed using hematoxylin-eosin (HE). Identification of the histological structure of uterus observed with a microscope at 100x and 400x magnification. The results showed the endometrial lining   consisted a single layer  of the columnar epithelium and lamina propria with tubular glands, myometrium consisted of smooth muscle and perimetrium with connective tissue, nerves and blood vessels

scholarly journals Paratesticular Hamartoma in an Infant

2016 ◽  
Vol 06 (03) ◽  
pp. 58-60
Author(s):  
Amol Dilip Amonkar ◽  
Raghu Shankar ◽  
Padma Shetty ◽  
Sandeep Rai ◽  
Mohammad Amir
Keyword(s):  
Smooth Muscle ◽  
Blood Vessels ◽  
Muscle Tissue ◽  
Rare Case ◽  
Smooth Muscle Tissue ◽  
Lymphoid Follicles ◽  
Nerve Bundles ◽  
Solid Lesions

AbstractThe benign paratesticular solid lesions havemore often been post-operative histological surprises. We report a rare case of hamartoma of paratesticular region. On inguinal exploration, lesion looked benign and it could be excised completely without opening the tunica. The mass haddisorganised mature tissue consisting of lipocytes, thick walled blood vessels, lymphoid follicles, nerve bundles and smooth muscle tissue, without neoplastic characteristics'. Any suspicious paratesticular lesion warrants an inguinal approach, as we did in our case, to prevent upstaging of the disease incase found to be malignant. However, since benign masses are more common a testicular sparing surgery is possible in a majority of cases.

scholarly journals Морфологічні особливості деяких органів головної кишки коня

2017 ◽  
Vol 19 (77) ◽  
pp. 121-124
Author(s):  
M.M. Stegney
Keyword(s):  
Connective Tissue ◽  
Lamina Propria ◽  
Lymphoid Tissue ◽  
Small Ruminants ◽  
Middle Part ◽  
Dorsal Side ◽  
The Body ◽  
Lymphoid Cells ◽  
Sphenoid Bone ◽  
Lymphoid Nodules

Complex classical morphological methods of studies were used in investigation. Pneumatic saccus is placed over the dorsal side of the pharynx and aside of it. Extended basis is attached to the ventral surface of the body and alar processes of sphenoid bone. Lateral wall of the pneumatic saccus is connected with the medial stylohyoid by loose connective tissue. In front, the dorsal wall is adjacent to the alar processes of sphenoid bone. Palatine processes of incisive bone are the basis of the hard palate in front part, maxillary palatine processes – in the middle part and horizontal plates of the palatine bones in the back part. Macroscopically tonsils are clusters of lymphoid tissue limited by connective tissue capsule under the epithelium of the tongue, soft palate and pharynx. Oral cavity mucosa in the tonsils area of cattle and small ruminants forms sinuses or numerous folds, which are separated by furrows of tongue and pharyngeal tonsils in other animal species. The cluster of separate lymphoid nodules and diffuse lymphoid tissue located at the root of the tongue between secretory units of serous mucous glands form the lingual tonsils. In the pharyngeal mucosa between secretory units of mucous glands lymphoid nodules of odd pharyngeal tonsil are located. Even palatine tonsils are located caudal to the palatoglossal arch and from sides of the tongue root. In horse diffuse tonsils crypts are located on the side of the tongue. Clusters of lymphoid nodules form tonsils of pharyngeal lymphoid ring. They have crypts, which look like hollow of the epithelium into lamina propria of mucosa, surrounded by lymphoid nodules and diffuse lymphoid tissue. The epithelium of the mucous membrane is flat non-keratinized stratified, infiltrated with lymphoid cells. Lamina propria of mucosa in the tonsil area forms a connective tissue membrane, from which layers of connective tissue with blood vessels depart to the middle. Glands’ secretory units are found in the connective tissue base, glands’ excretory ducts open into the lumen of the crypts. Lymphoid tissue is the basis of parenchyma, which is formed by reticular tissue and lymphoid cells.

A collagen matrix derived from bladder can be used to engineer smooth muscle tissue

2008 ◽  
Vol 26 (4) ◽  
pp. 307-314 ◽  
Author(s):  
Byung-Soo Kim ◽  
Anthony Atala ◽  
James J. Yoo
Keyword(s):  
Smooth Muscle ◽  
Muscle Tissue ◽  
Collagen Matrix ◽  
Smooth Muscle Tissue

scholarly journals Enamel Matrix Derivative in Diffusion Chamber Implanted Subcutaneously in Rat Induces Formation of Fibrous Connective Tissue Containing Abundant Blood Vessels

In Vivo ◽  
2021 ◽  
Vol 35 (1) ◽  
pp. 313-317
Author(s):  
SATOSHI YOKOSE ◽  
YUKA KATO ◽  
KATSUTOSHI MATSUMOTO ◽  
PERRY R. KLOKKEVOLD ◽  
HENRY H. TAKEI ◽  
...  
Keyword(s):  
Connective Tissue ◽  
Blood Vessels ◽  
Diffusion Chamber ◽  
Enamel Matrix Derivative ◽  
Fibrous Connective Tissue ◽  
Enamel Matrix ◽  
Matrix Derivative

scholarly journals Morphofunctional and immunohistochemical characteristics of the large omentum in ovarian cancer

2020 ◽  
Vol 9 (3) ◽  
pp. 64-71
Author(s):  
N. N. Shevlyuk ◽  
L. V. Khalikova ◽  
A. A. Khalikov
Keyword(s):  
Ovarian Cancer ◽  
Connective Tissue ◽  
Protein Expression ◽  
Blood Vessels ◽  
Lymphoid Tissue ◽  
P53 Protein ◽  
Individual Variability ◽  
The Body ◽  
Great Omentum ◽  
Low Grade

The aim of the study was to establish morphofunctional and immunohistochemical characteristics of large omentum in women with ovarian cancer.Material and methods. The large omenta of 48 women with ovarian cancer (low-grade differentiated seropapillary adenocarcinoma of high-grade malignancy) of II stage (n=20) and III stage (n=28) were studied. Histological sections were stained with overview histological and immunohistochemical methods (to reveal ki67, P53, CD34, CD7, CD4, CD8, CD61 proteins expression). Results. In patients, the size of the large omentum was characterized by high individual variability; in the presence of metastasis, the size of the omentum was reduced. Intensive development of blood vessels in the organ was noted, but in the presence of metastases stasis of blood corpuscles, leucocytic infiltration, and moderate edema of connective tissue were observed in the organ’s vessels. Areas of lymphoid tissue, both small lymphatic follicles and diffusely located lymphoid tissue, were revealed in the omentum. In most follicles, reactive centers were not marked, and the number of follicles was reduced in the presence of metastases in the omentum. The analysis of CD34+ cells distribution showed that they were identified both in the tumor and in the areas of the omentum adjacent to the tumor, which indicates a pronounced angiogenesis. An irregular distribution of CD7+ and CD8+ and CD4+ cells was revealed in the tumor tissues, as well as in the surroundings. Simultaneously with the expression of P53 protein, ki67 protein expression is revealed in the significant number of tumor cells (including endothelial cells of tumor blood vessels). The proportion of ki67+ cells in the tumor cell population was 60.1±3.3%. The presence of a large number of ki67+cells in the presence of P53 protein expression in them indicates the aggressiveness of the tumor, as well as a disturbance of apoptosis regulatory mechanisms in the cells. Ki67 expression was low in the omentum areas unaffected by metastases, and it was revealed in the certain areas of connective tissue in fibroblastic programmed differentiation cells. Conclusion. The results obtained indicate significant plasticity and reactivity of great omentum in the presence of tumor process in the body and confirm the important role of great omentum in protective reactions.

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