Anatomical and histological study of the thymus gland in native rabbits (Oryctolagus cuniculus)

Khaleel, Iman M.; Nasser, R.; Alkazraji, Khalid Ibrahim Abd; Alshammary, Hanaa Kareem Ali

doi:10.29079/vol17iss1art478

Cited by 2 publications

(3 citation statements)

References 6 publications

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“…The outermost layer of the stomach is the tunica serosa consisting of blood vessels, nerves, and areolar adipose connective tissue, this tunica was stretched and in certain places, it blends in with the former tunic. The last three layers have the same histological structure along of stomach wall and similar to those reported by (Khalel and Ghafi, 2012;de Sousa Cavalcante et al, 2021). The fundic region was the largest and took up the whole space in the stomach between the pyloric and cardiac regions.…”

Section: Stomachsupporting

confidence: 85%

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Histomorphological and Histochemical Study of Esophagus and Stomach in the Neonate Guinea Pigs (Cavia porcellus)

Neamah Al-Shreefy,

A.H. Al-Taai

2024

JAHP

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This study aimed to investigate the histomorphological changes that occur in the esophagus and stomach during the postnatal periods of guinea pigs' lives. For this purpose, pregnant guinea pigs in good health condition were obtained from public markets and housed in the animal facility until delivery to obtain neonate guinea pigs. Ten pups were separated from their mothers on the second day of their lives and euthanized using an overdose of ketamine HCl (85-95 mg/kg BW). The topographic position of organs was observed in situ, and samples were collected in 10% neutral buffered formalin for routine histological procedures. The results showed that in neonate guinea pigs, the esophagus was a narrow muscular tube approximately 1.47±0.02 cm in length and 0.044±0.02 gm in weight, divided according to its position into three portions. The stomach was a transverse, transparent, whitish-pink sac-like structure of the digestive system with a weight of 1.13±0.05 gm, a length of 2.76±0.04 cm, and a capacity of 2.57±0.08 ml. The stomach lacks an outward demarcation-limiting ridge between its divisions and appears relatively lobulated. This age was characterized by longitudinal and translational folds along the entire inner surface. Histologically, both organs were composed of the same four basic layers. Due to some of its distinct anatomical and physiological characteristics, this animal species is valuable as a model in numerous scientific investigations. Therefore, this study sheds light on the histomorphological and histochemical properties of these organs, supporting further studies on vital digestive tract functions such as food processing and absorption.

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Section: Stomachsupporting

confidence: 85%

“…The wall of each region had four basic layers: mucosa, submucosa, muscularis, and serosa (figs 3_9, 10). As mentioned in the study of (Khalel and Ghafi, 2012) for rabbits, the cardiac area revealed a tiny, folded region encircling the esophageal opening. The simple columnar epithelium lines the cardiac region's tunica mucosa.…”

Section: Stomachmentioning

confidence: 62%

Histomorphological and Histochemical Study of Esophagus and Stomach in the Neonate Guinea Pigs (Cavia porcellus)

Neamah Al-Shreefy,

A.H. Al-Taai

2024

JAHP

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“…In each lobule there is a cortex and a medulla. The body is based on epithelial D. E. Rahmoun, M. A. Lieshchova, S. Chaanbi, S. Chergui Study of anatomical, histological and cytological characteristics of the thymus of lambs tissue, made up of epithelial cells, research has been done on the rabbit by the authors (Khaleel et al, 2018), who found the same results.…”

Section: Discussionmentioning

confidence: 95%

Study of anatomical, histological and cytological characteristics of the thymus of lambs

Rahmoun¹,

Lieshchova²,

Chaanbi³

et al. 2020

TAVM

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Thymus of lambs of the Ouled-Djellal breed from eastern Algeria, aged one to 10 months, were used to study the anatomical, histological and cytological characteristics of these organs. Modern techniques have been used to demonstrate the morphometric parameters and masses of the thymus at different ages, a regression of the morphometric and mass indexes has been visualized according to the age of the lambs. Staining techniques with Hematoxylin and eosin revealed the normal structure of the thymus with its tissue components. The thymus is bilobed. The lobe is surrounded by a thin capsule and subdivided into lobules separated by septae, the cortical and medullary areas were clearly visible, the interlobular blood vessels enter the lobule in all its aspects to continue its way as interlobular blood vessels. From the changes observed in the involution of the thymus according to the age of the animals which occur relatively late, the percentage of the surface found for the capsule was very variable, which increases from the first to the tenth month, the demarcation of the cortex and the medulla beginning during the second month of age of the animal. The interlobular connective tissue (ILC) presents sums, the maximum of which was found in the fourth month of age of the animal, while the minimum was found in the thymus of ninth month lambs Concerning the Hassal corpuscles, their sums are in high extension until the tenth month, rich in T lymphocytes, whose use of immunohistochemistry, the anti-CD 157+ antibody allowed us to visualize to locate them clearly, which invade and form most of the thymus cortex. In conclusion, the significant changes in thymus development in sheep of the Ouled-Djellal breed are similar to those of other species.

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Anatomical and histological study of the thymus gland in native rabbits (Oryctolagus cuniculus)

Cited by 2 publications

References 6 publications

Histomorphological and Histochemical Study of Esophagus and Stomach in the Neonate Guinea Pigs (Cavia porcellus)

Histomorphological and Histochemical Study of Esophagus and Stomach in the Neonate Guinea Pigs (Cavia porcellus)

Study of anatomical, histological and cytological characteristics of the thymus of lambs

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