Open AccessHistological aspects of the esophagus in guinea pigs (Cavia porcellus)
Author(s) -
Vasile Rus,
Flavia Ruxanda,
Aurel Damian,
Călin Nuț,
Cristian Martonos,
Gabriela Dogaru,
Viorel Mitre,
Adrian Florin Gal
Publication year - 2019
Publication title -
bulletin of university of agricultural sciences and veterinary medicine cluj-napoca. veterinary medicine
Language(s) - English
Resource type - Journals
eISSN - 1843-5378
pISSN - 1843-5270
DOI - 10.15835/buasvmcn-vm:2019.0014
Subject(s) - esophagus , cavia , anatomy , muscularis mucosae , submucosa , guinea pig , lamina propria , h&e stain , trichrome , pathology , masson's trichrome stain , stratified squamous epithelium , epithelium , biology , medicine , staining
The aim of this study is the detailed description of the esophageal microscopic structure in guinea pigs. Fragments from the cervical, thoracic and abdominal segments of the esophagus were processed for classical paraffin embedding and the sections were stained by hematoxylin-eosin and Goldner’s trichrome methods. The esophagus in guinea pigs is lined by keratinized stratified squamous epithelium and there are no glands in the lamina propria and the submucosa. The muscularis mucosae is formed by smooth muscle cells disposed longitudinally. The muscularis externa is formed by striated muscle cells disposed on 3 layers in the first 2 thirds of the esophagus, while in some regions of the abdominal segment’s circumference, the cells form 4 layers.