The Enterochromaffin Cells of the Surface and Glandular Epithelium of the large Intestine of the Horse

ABSTRACT Autoradiographic, enzymic and histologic studies on uteri of pregnant rats were carried out to follow the endometrial modifications which take place during progestation (days L0 – L4) and culminate in the state of uterine receptivity essential for ovum-implantation. Pulse labelling with tritiated thymidine (radioactive DNA precursor) on L0, L1 and L2 revealed a sequence of cell renewal in luminal and glandular epithelium and endometrial stroma. On L3 and L4 stromal cells showed extensive incorporation of tritiated thymidine. This synthetic activity was associated with endometrial preparation for decidualization and was evoked at least in part, by the surge of oestrogen on L3. All layers of the uterine wall were heavily infiltrated on L0 and resembled the site of an acute inflammatory reaction. Subsequently, polymorphonuclear infiltration diminished and monocytic cells predominated. On L3 a spatial arrangement was observed: eosinophiles were concentrated in the basal endometrium and monocytic cells in the subepithelial stroma. A comparison was made between such a shift in migratory cells in the uterus and similar phenomena which occur in inflammatory and immune reactions. Activities of acid and alkaline phosphatases, of ATP-ase and succinic dehydrogenase were low on L0 and L1 during the periods of infiltration, degeneration and regeneration of luminal and glandular epithelium. Enzymic activities increased on the following days, (L3 and L4). Vascular dilation and engorgement and endometrial oedema were observed near the blastocysts on L4. Most blastocysts incorporated tritiated thymidine after 14.00 h on L4, but some showed uptake before loss of the zona which occurs usually between 14.00 and 16.00 h; therefore, it was assumed that the permeability of the zona increases prior to being shed. Activities of succinic dehydrogenase and acid and alkaline phosphatases were demonstrable in blastocysts on L4 while they were still »free« in the uterine lumen.

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MORPHOLOGICAL CHARACTERISTICS OF THE LIVER TISSUE AND THE MUCOUS TUNIC OF THE LARGE INTESTINE IN NONALCOHOLIC FATTY LIVER DISEASE AGAINST A BACKGROUND OF OBESITY

Clinical anatomy and operative surgery ◽

10.24061/1727-0847.10.4.2011.15 ◽

2011 ◽

Vol 10 (4) ◽

pp. 65-68

Author(s):

I. Yu. Korniychuk ◽

S. A. Andryeyev ◽

O. V. Besedynsʹka ◽

V. I. Besedynsʹkyy

Keyword(s):

Liver Disease ◽

Fatty Liver ◽

Nonalcoholic Fatty Liver Disease ◽

Large Intestine ◽

Liver Tissue ◽

Fatty Liver Disease ◽

Morphological Characteristics ◽

Nonalcoholic Fatty Liver

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Subcutaneous Emphysema of a Neck and Extensive Phlegmon of a Lower Limb as the First Symptoms of Large Intestine Perforation

Polish Journal of Surgery ◽

10.2478/v10035-009-0058-1 ◽

2009 ◽

Vol 81 (8) ◽

Author(s):

Aleksandra Wawrzak ◽

Janusz Korlacki ◽

Michał Głowacz

Keyword(s):

Large Intestine ◽

Subcutaneous Emphysema ◽

Lower Limb

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Anatomi Saluran Pencernaan biawak air (Varanus salvator) (Reptil: Varanidae)

10.31227/osf.io/qugw6 ◽

2019 ◽

Author(s):

Mahfud Mahfud ◽

Ihwan

Keyword(s):

Small Intestine ◽

Digestive Tract ◽

Large Intestine ◽

Scientific Information ◽

Tissue Perfusion ◽

Animal Population ◽

Varanus Salvator ◽

Commercial Purpose ◽

Left And Right ◽

Biology Laboratory

Excessive hunting and poaching for commercial purpose of Varanus salvator in Indonesia can cause a decline in this animal population. However, the scientific information of this animal especially about the biologic of organ system is rarely reported. Therefore, this case opens up opportunities for researching, which aims to study the anatomy of digestive tract of water monitor macroscopically. This research has been conducted in Biology Laboratory, University of Muhammadiyah Kupang for 5 months from March to August 2016. The digestive organ of this animal that has been preserved in alcohol 70% was obtained before from two males of water monitors. Preservation process: the animal were anesthetized, exsanguinated, and fixated in 4 paraformaldehyde by tissue perfusion method. Observations were performed to the visceral site and morphometrical of digestive tract. The resulted data was analysed descriptively and presented in tables and figures. The digestive tract of water monitor consist of esophagus, stomach, small intestine, large intestine and cloaca. The dimension of each organ is different based on its structures and functions. The esophagus of water monitor connects the mouth cavity and the stomach and also as the entrance of food to the stomach. Water monitor stomach were found in cranial part of abdomen, in left side of liver. The small intestine was longer than stomach and it is a winding muscular tube in abdomen in posterior side of liver. The large intestine consist of colon and cloaca, while cecum was not found. This channel was extend lateromedially in abdomen to cloaca between left and right kidneys. The cloaca was the end of digestive tract which excreted feces and urine. From this research, we can conclude that the digestive tract of water monitor consists of esophagus, stomach, small intestine, and large intestine. It’s difficult to differentiate small intestine and large intestine because there are no cecum.

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