Development of villus absorptive cells in the human fetal small intestine: A morphological and morphometric study

1979 ◽  
Vol 195 (3) ◽  
pp. 463-482 ◽  
Author(s):  
Pamela Colony Moxey ◽  
Jerry S. Trier
Keyword(s):  
Small Intestine ◽  
Morphometric Study ◽  
Absorptive Cells

scholarly journals Adenocarcinomas of the Intestine Induced in Syrian Hamsters by N-methyl-N-nitrosourea

1969 ◽  
Vol 6 (5) ◽  
pp. 403-412
Author(s):  
Katherine McD. Herrold
Keyword(s):  
Small Intestine ◽  
Cytological Change ◽  
Histological Changes ◽  
Syrian Hamsters ◽  
Histological Types ◽  
Absorptive Cells ◽  
Cytological Features

The adenocarcinomas of the intestine induced in Syrian hamsters by N-methyl-N-nitrosourea (NMU) were of two histological types, superficial and intestinal. These types had distinctive characteristics regarding pattern, cytological features, secretion of mucus, and mode of growth. The histological changes induced by NMU in the mucosa of the small intestine differed from what has been described in enzootic intestinal adenocarcinoma and proliferative ileitis of Syrian hamsters. NMU produced alteration in the villous architecture and cytological change in the absorptive cells. There was marked shortening of the villi and reduced thickness of the mucosa. The villous absorptive cells were large and cuboidal with centrally placed nuclei.

Endocytosis by absorptive cells in the middle segment of the suckling rat small intestine

2002 ◽  
Vol 77 (2) ◽  
pp. 117-123 ◽  
Author(s):  
Ryoko Baba ◽  
Mamoru Fujita ◽  
Chen En Tein ◽  
Masayuki Miyoshi
Keyword(s):  
Small Intestine ◽  
Rat Small Intestine ◽  
Middle Segment ◽  
Absorptive Cells

scholarly journals MORPHOMETRIC STUDY OF THE SMALL INTESTINE OF RAT-ADOLESCENTS IN CHRONIC INTOXICATION WITH LEAD ACETATE

2018 ◽  
Vol 67 (3) ◽  
pp. 69-71
Author(s):  
P.A. Elyasin ◽  
◽  
S.V. Zalavina ◽  
A.N. Mashak ◽  
A.P. Nadeev ◽  
...  
Keyword(s):  
Small Intestine ◽  
Lead Acetate ◽  
Morphometric Study ◽  
Chronic Intoxication

Small Intestine: Absorptive Cells

2010 ◽  
pp. 224-225
Author(s):  
Margit Pavelka ◽  
Jürgen Roth
Keyword(s):  
Small Intestine ◽  
Absorptive Cells

Demonstration of microtubules in the terminal web of mature absorptive cells from the small intestine of the rat

1987 ◽  
Vol 248 (3) ◽  
pp. 709-711 ◽  
Author(s):  
SusanJ. Hagen ◽  
CarolH. Allan ◽  
JerryS. Trier
Keyword(s):  
Small Intestine ◽  
Terminal Web ◽  
Absorptive Cells

scholarly journals BRUSH BORDER DEVELOPMENT IN THE INTESTINAL ABSORPTIVE CELLS OF XENOPUS DURING METAMORPHOSIS

1970 ◽  
Vol 44 (1) ◽  
pp. 151-171 ◽  
Author(s):  
Mary A. Bonneville ◽  
Melvyn Weinstock
Keyword(s):  
Electron Microscopy ◽  
Small Intestine ◽  
Brush Border ◽  
Apical Membrane ◽  
Surface Membrane ◽  
Apical Surface ◽  
Absorptive Cells ◽  
Golgi Region ◽  
Macromolecular Architecture

The differentiation of the brush border which makes up the apical free surface of intestinal absorptive cells has been studied by electron microscopy. Specimens of Xenopus small intestine were fixed at various stages during metamorphosis, the time when a new intestinal epithelium forms. The interpretation of details described herein emphasizes the role of "surface-forming" vesicles. These vesicles are thought to provide membrane both for the initial expansion of the apical surface and for the later elongation of the microvilli. The latter are believed to be "molded" around filamentous cores that appear early in differentiation. The cores are attached to the apical membrane and extend vertically into the supranuclear cytoplasm. This interpretation rests chiefly on (a) the resemblance, both in morphology and in staining properties with colloidal thorium, between the membrane that limits the vesicles and that which limits the microvilli and (b) the distribution and time of appearance of the vesicles with respect to development of the microvilli. According to this view, the specific properties of surface membrane reside in preformed units that arise within the supranuclear cytoplasm. This morphogenetic process probably involves participation of the Golgi region as the site where the complex macromolecular architecture of the cell surface is assembled.

scholarly journals MORPHOMETRIC STUDY OF ISOLATED DOGIEL TYPE II CELLS OF THE INTERMUSCULAR PLEXUS

2021 ◽  
Vol 11 (3) ◽  
pp. 17-19
Author(s):  
Ramilya Babaeva
Keyword(s):  
Small Intestine ◽  
3D Model ◽  
Longitudinal Direction ◽  
3D Models ◽  
Morphometric Study ◽  
Type Ii Cells ◽  
Impregnation Method ◽  
Type Ii ◽  
Type Ii Cell ◽  
Dogiel Type Ii

Aim of the study was to calculate the morphometric parameters of isolated Dogiel type II cells from the intermuscular plexus of the small intestine. Materials and methods: 3D models of the oval-shaped Dogiel type II cells from the intermuscular plexus of a rat (n = 1) were constructed and studied. Neurocytes were identified by the impregnation method on the frontal and horizontal sections of the wall of the small intestine. Results: The results showed that the total number of the nodes in the virtual model was 36534, and the mesh elements — 156595. The resulting 3D model of the cell and nucleus was reduced 900 times to obtain a threedimensional cell and nucleus with absolute dimensions, with a ratio of 1:1 to their true size. The volume of Dogiel type II cell was 2785.11 μm³, the volume of the nucleus was 647.7 μm³ and the volume of its perikaryon was 2785.11 μm³. Conclusion: Dogiel type II cells from the intermuscular plexus of the rat small intestine has an ovoid shaped threedimensional structure. These cells are flattened in transverse direction and elongated in longitudinal direction.

scholarly journals Anatomical and Morphometric Study of Small and Large Intestine of Bali Cattle

2020 ◽  
Vol 3 (2) ◽  
pp. 86
Author(s):  
Luh Gde Surya Heryani ◽  
Ni Nyoman Werdi Susari ◽  
Luh Putu Syamadina Pramesya Nareswari
Keyword(s):  
Small Intestine ◽  
Large Intestine ◽  
Digestive System ◽  
Average Length ◽  
Morphometric Study ◽  
Preclinical Research ◽  
Colon And Rectum ◽  
Bali Cattle ◽  
The Right

Information on the anatomical and morphometric structure of the digestive system of Bali cattle will provide a clear and precise picture if abnormalities occur in the organs in the digestive system. This study aims to determine the anatomical and morphometric structures of the small intestine and large intestine of Bali cattle. Samples were taken from 14 Bali cattle and based on gross pathology examination declared healthy. The results showed that the average length of the small intestine including the duodenum, jejunum and ileum are 473.07 cm, 529.64 cm, and 363.64 cm; and successive widths are 5.50 cm, 6.00 cm, and 6.11 cm. While the average length of the large intestine which includes the cecum, colon and rectum are 36.78 cm, 371.21, 50.00 cm; while the width are 9.65 cm, 11.47 cm, and 8.85 cm. Jejunum has the longest size in the small intestine, while in the large intestine the longest size is the colon. The right information and data about the digestive system are very important and useful to support further clinical and preclinical research, and the results of this study can be used as a reference in determining the characterization of Bali cattle.

Ultrastructure of the Intestinal Absorptive Cells of Fed and Fasted Tadpoles

1970 ◽  
Vol 28 ◽  
pp. 86-87
Author(s):  
Robert Giaquinta ◽  
M. A. Hayat
Keyword(s):  
Electron Microscopy ◽  
Small Intestine ◽  
Fine Structure ◽  
Osmium Tetroxide ◽  
Rana Pipiens ◽  
Ultrastructural Changes ◽  
Amphibian Metamorphosis ◽  
Absorptive Cells ◽  
Food Absorption ◽  
Tissue Specimens

The ultrastructural changes that occur in the intestinal absorptive cells during amphibian metamorphosis have been reported (Bonneville, 1963). These changes accompany a change in diet (from an herbivorous to a carnivorous state) during metamorphosis. Little information is available, however, on the ultrastructural changes in the absorptive cells of amphibians in relation to the state of feeding. This report describes the differences in the fine structure of these cells in the tadpole stage of Rana pipiens during periods of food absorption and fasting.Rana pipiens at tadpole stages were fed an herbivorous diet, and after a period of 48 hr, the animal was dissected and segments of the small intestine were collected for electron microscopy. A second group of tadpoles was fasted for 7 days, and segments of the small intestine were collected. The tissue specimens were immersed in phosphate-buffered glutaraldehyde (3%) for 1 hr at 4C and postfixed with phosphate-buffered osmium tetroxide (2%) for 1 hr at 4C.

Sign in / Sign up

Export Citation Format

Share Document