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Histo-ontogenetic study of the parotid salivary gland of Indian buffalo.

Authors
  • Singh, Amandeep1
  • Singh, Opinder2
  • 1 Department of Veterinary Anatomy, Lala Lajpat Rai University of Veterinary and Animal Sciences (LUVAS), Hisar, India. , (India)
  • 2 Department of Veterinary Anatomy, Guru Angad Dev Veterinary and Animal Sciences University (GADVASU), Ludhiana, India. , (India)
Type
Published Article
Journal
Anatomia Histologia Embryologia
Publisher
Wiley (Blackwell Publishing)
Publication Date
Mar 01, 2021
Volume
50
Issue
2
Pages
250–259
Identifiers
DOI: 10.1111/ahe.12622
PMID: 33001501
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

The present study was aimed at elucidating the histogenesis of parotid gland of buffalo. The study was carried out on buffalo foetuses (n = 36), during different stages of prenatal life. The foetuses were categorised into three groups based on their curved crown rump length (CVRL). The primordial anlage of parotid salivary gland was evident at 40th day of development whereas the primary ducts, in the form of cords, were first observed at 81st day of prenatal life. The capsule formation as well as the lobulation of the gland was initiated at 127th day. At 141st day, the duct system of gland was completed. The terminal tubules attained the structure of acini at 167th day. The myoepithelial cells first appeared as flattened basal cells initially around the developing acinar cells at 167th day. The typical compound tubulo-acinar nature of the gland was first observed at 185th day. Purely serous acinar cells were seen from 185th day onwards. The micrometrical studies revealed that the mean diameter of acinar cells, intercalated ducts, striated ducts and large ducts increased with the advancement of age. The serous acinar cells were devoid of acidic as well as neutral mucopolysaccharides in prenatal age groups; however, large ducts with goblet cells exhibited positive reaction. Combined PAS-AB method revealed mixed reaction in acinar cells as well as in large ducts. Fine lipid droplets were observed in intralobular as well as interlobular connective tissue; however, phospholipids were observed in the cell membrane of secretory cells and ducts. © 2020 Wiley-VCH GmbH.

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