Comparative Biochemistry of Digestive Mechanisms

Vonk, H. J.

doi:10.1016/b978-0-12-395547-0.50014-8

Cited by 14 publications

(2 citation statements)

References 212 publications

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“…Furthermore, it protects the animal from microorganism ingested with the prey. Most amphibians produce more pepsinogen in the esophagus when compared with that of the stomach (Vonk 1964). However, Liquori et al (2002) related true esophageal glands containing mucous-secreting cells and oxynticopeptic cells in the esophagogastric junction.…”

Section: Discussionmentioning

confidence: 99%

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Histochemical, immunohistochemical, and ultrastructural observations of the esophagus morphology of Rinella icterica (Anuran, Bufonidae)

Pelli-Martins¹,

Machado-Santos

Sales

et al. 2011

Acta Zoologica

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Pelli-Martins, A.A., Machado-Santos, C., Sales, A. and de Brito-Gitirana, L. 2012. Histochemical, immunohistochemical, and ultrastructural observations of the esophagus morphology of Rinella icterica (Anuran, Bufonidae). -Acta Zoologica (Stockholm) 93: 373-380.The esophagus of Rinella icterica was analyzed by employing histochemical methods and lectin histochemistry at light microscopy as well as by transmission electron microscopy. The mucosa was composed of a ciliated columnar pseudostratified epithelium with goblet cells, overlying a lamina propria. The goblet cells contained neutral and acid glycoconjugates and were positive for galactose residues. Moreover, two types of goblet cells were identified; one type was positive for mannose, and the other was negative. Serotonin-immunoreactive cells (5HT-IR) occurred randomly scattered at the base of the epithelium; they were also localized between the mucous cells of the gland. Both submucosa and adventitia were composed of loose connective tissue, and the muscularis was formed by smooth muscle. Although the basic morphology of the esophagus of R. icterica is similar to that of mammals, the esophagus showed some morphological differences that are likely to be related to the specific physiology of the tissue.

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Section: Discussionmentioning

confidence: 99%

“…However, Liquori et al (2002) related true esophageal glands containing mucous-secreting cells and oxynticopeptic cells in the esophagogastric junction. Most amphibians produce more pepsinogen in the esophagus when compared with that of the stomach (Vonk 1964). However, the function of the esophageal pepsinogen is not yet known.…”

Section: Discussionmentioning

confidence: 99%

Histochemical, immunohistochemical, and ultrastructural observations of the esophagus morphology of Rinella icterica (Anuran, Bufonidae)

Pelli-Martins¹,

Machado-Santos

Sales

et al. 2011

Acta Zoologica

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Histology of the esophagus of the adult frog Rana perezi (Anura: Ranidae)

Gallego-Huidobro

Pastor

Calvo

1992

Journal of Morphology

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Study of the esophageal microscopic morphology of adult Rana perezi by light and electron microscopy discloses some large folds throughout the esophagus that are in themselves ringed. Glandular ostia open in the furrows of the luminal surface. The esophageal wall is made up of a connective adventitia rich in melanocytes, a muscular tunica, a connective and glandular subepithelial layer, and a pseudostratified ciliated epithelium. This epithelium basically consists of ciliated, goblet, basal, microvillous-apex, and migratory cells. Two types of goblet cells are distinguished with regard to the granular ultrastructure. The microvillous-apex cell has not been found in other amphibians. It shows a very differentiated morphology with a high number of mitochondria. The basal cells give the epithelium a pseudostratified morphology, and they have a proliferative function. Glands are branched and drain through an excretory duct that has a monolayered mucosecreting epithelium. The glandular units are formed by two principal types of cells: mucosecretory and serous.

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Vorkommen und Eigenschaften der Carbons�ureesterasen im Hepatopankreas und Magensaft des Flu�krebses Astacus astacus (L.) und Cambarus affinis (Say)

Kleine¹

1967

Z. Vergl. Physiol.

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Comparative Biochemistry of Digestive Mechanisms

Cited by 14 publications

References 212 publications

Histochemical, immunohistochemical, and ultrastructural observations of the esophagus morphology of Rinella icterica (Anuran, Bufonidae)

Histochemical, immunohistochemical, and ultrastructural observations of the esophagus morphology of Rinella icterica (Anuran, Bufonidae)

Histology of the esophagus of the adult frog Rana perezi (Anura: Ranidae)

Vorkommen und Eigenschaften der Carbons�ureesterasen im Hepatopankreas und Magensaft des Flu�krebses Astacus astacus (L.) und Cambarus affinis (Say)

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