Histological Study of the Oesophagus and Stomach in Grey-Backed Shrike (Lanius tephronotus)

Zhu, Lei

doi:10.4067/s0717-95022015000200009

Cited by 17 publications

(25 citation statements)

References 9 publications

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“…Many references refer to the nature of the food eaten by animal, and the way itis obtained will determine the histological structure of the digestive tract (4). The results showed that the stomach of the magpie was composed of two parts: proventiculus and gizzard, similar to many birds (8,9), while the stomach of the small asian mongoose consist of three regions: cardiac stomach, fundic stomach and pyloric stomach, which is consistent with (10). The stomach wall in both species consist of four main layers: mucosa, submucosa, muscularis externa and serosa.…”

Section: Discussionsupporting

confidence: 86%

Developing an Immune Negative Selection Algorithm for Intrusion Detection in NSL-KDD data Set

Alanezi¹,

Allah²

2016

Baghdad Sci.J

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A histological study showed the wall of the stomach in Pica pica and Herpestes javanicus consists of four layers: mucosa, submucosa, muscularis externa and serosa. Also, the present study showed many differences in the histological structures of the stomach for each in both types. The stomach of P. pica consists of two portions: the proventiculus and gizzard, while the stomach of H. javanicus consists of three portions: cardiac, fundic and pyloric regions. The mucosa layer formed short gastric folds, named plicae. In the proventiculus of P. pica, sulcus is found between each two plicae, but the folds called gastric pits in the gizzard, which are full with koilin. Lamina properia in both types contained gastric glands (straight simple tubular glands) named superficial glands, as well as another gastric gland found in the submucosa layer of the proventiculus in P. pica only named deep gastric glands. The gastric gland in the stomach of H. javanicus contained: mucous neck cells and parietal cells positive to AB/PAS stains in cardiac portion, as well as chief cells in fundic portion, but pyloric portion had just mucous neck cells. Muscularis externa in both types formed two muscle layers: inner and outer layer.

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Section: Discussionsupporting

confidence: 86%

Developing an Immune Negative Selection Algorithm for Intrusion Detection in NSL-KDD data Set

Alanezi¹,

Allah²

2016

Baghdad Sci.J

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“…Histological results obtained in the present investigation revealed that the alimentary canal of Vanellus spinosus consists of four main layers; serosa, muscularis, submucosa and mucosa 9 . The oesophageal layers are three; serosa, muscularis and mucosa 10,11 . Muscularis layer is well developed and consists of two layers of muscle fibers; circular muscle fibers outwards and longitudinal muscle fibers inwards.…”

Section: Discussionmentioning

confidence: 99%

“…The muscularis is composed of outer longitudinal and inner circular muscle fibers 12,13 . The muscularis is formed of circular muscle layer in their studies on germain's swiftlet and Grey-Backed Shrike respectively 11,14 .…”

Section: Discussionmentioning

confidence: 99%

Histological and Histochemical Studies on the Alimentary Canal of Spur-Winged Lapwing Vanellus Spinosus

Taki-El-Deen

2017

EJHM

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Aim of the work: The present study aims to describe and compare between the different parts of the alimentary canal of Spur-winged lapwing Vanellus spinosus from the histological and histochemical reviews. Materials and methods: This animal was caught from its natural habitat (Nile Delta in Egypt); dissected and the alimentary canal was fixed in the suitable fixatives for histological and histochemical investigations. Results: Histological findings revealed that the alimentary canal wall in different parts under investigation is consisted of four main layers which are; serosa, muscularis, submucosa and mucosa. The serosa is composed of simple squamous epithelium. The muscularis is formed of outer circular and inner longitudinal muscle fibers. The submucosa is showing green colour with Masson's stain due to its content of connective tissue. The mucosal folds of oesophagus are characterized by stratified squamous epithelium. At the base of these folds, oesophageal glands which secrete acid mucopolysacchride are located. The stomach composed of two parts; cardiac (glandular) and pyloric (muscular). The gastric glands of glanular portion are differentiated into deep and superficial gastric glands. The deep gastric glands are of compound-branched alveolar and have neutral mucopolysacchride secrections. While, the superficial gastric glands are of compound tubular type and secreting acid and neutral mucopolysacchride since they give blue and red colours with Alcian PAS stain. The gastric glands in muscular portion of stomach, are compound tubular type and have acid and neutral mucopolysaccharides. The mucosal villi of duodenum and ileum are characterized by tubular glands (crypts of Leiberkhün), which contain acid and neutral mucopolysaccharides. The mucosal layer of rectum is covered by simple columnar epithelium containing goblet cells in addition to the rectal glands. This layer nature is acid and neutral mucopolysaccharides. The histochemical results showed differences in the stainability and distribution of polysaccharides, acid and neutral mucopolysaccharides in different parts of alimentary canal of investigated animal.

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“…Longitudinal muscularis mucosa an extension of muscle lying close to the mucosal glands might be responsible for putting pressure on the glands resulting in contraction to release mucin [22]. Thin submucosal layer has been reported in most avian species [23] but missing in grey-backed shrike [22], while the tunica muscularis appeared broad with inner circular and outer longitudinal external muscle layer in avian species [18, 19, 24–26]; these appeared similar to the findings of this study.…”

Section: Discussionmentioning

confidence: 99%

Histogenesis of the Oesophagus of Guinea Fowl (Numida meleagris) at Prehatch and Posthatch

et al. 2016

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The histogenesis of the primordial oesophagus was studied to determine the period in which the tunics of the oesophagus developed and became functional in the helmeted guinea fowl (Numida meleagris). Eighteen embryos and nine keets were studied at prehatch and posthatch, respectively. Simple columnar epithelium surrounded by mesenchymal cells was obvious at the 8th day of embryonic development. By the 19th day of embryonic development, the four tunics, tunica mucosa, submucosa, tunica muscularis, and tunica adventitia/serosa, were beginning to differentiate from the mesenchymal cells and also the primordial oesophageal glands appeared as clusters of cells that invaginate from the epithelium. By the 27th day, the tunics were clearly differentiated and the primordial glands were fully developed as evident with positive reaction to Periodic Acid Schiff (PAS). The tunics of the muscularis were not well developed till at posthatch. This study therefore concludes that the primordial oesophagus is active at the late incubation due to mucin secretion by mucous glands but fully functional at posthatch since the tunica muscularis is completely developed at posthatch.

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Histological Study of the Oesophagus and Stomach in Grey-Backed Shrike (Lanius tephronotus)

Cited by 17 publications

References 9 publications

Developing an Immune Negative Selection Algorithm for Intrusion Detection in NSL-KDD data Set

Developing an Immune Negative Selection Algorithm for Intrusion Detection in NSL-KDD data Set

Histological and Histochemical Studies on the Alimentary Canal of Spur-Winged Lapwing Vanellus Spinosus

Histogenesis of the Oesophagus of Guinea Fowl (Numida meleagris) at Prehatch and Posthatch

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