Home|Journals|Articles by Year|Audio Abstracts
 

Original Article

AJVS. 2024; 80(1): 1-17


Comparative Study on the Gross Anatomy of Some Abdominal Organs in Albino Rat (Rattus norvegicus) and Albino Mouse (Mus musculus)

Alaa H. Elsayed and Samar M. EL-Gammal.




Abstract

A comparative gross anatomical study was carried out on six apparently healthy adult male albino rats (Rattus norvegicus) and albino mice (Mus musculus) (Three rats and three mice) The aim of the current work is to demonstrate the gross anatomical topography, morphology and fixation of (liver, kidney, spleen, stomach and pancreas) in order to highlight similarities and differences between both species. The animals were brought from local animal markets and delivered to the anatomy laboratory of the Faculty of Veterinary Medicine Cairo University, Egypt. After euthanasia, animals were anatomically dissected via mid laparotomy to study the concerned abdominal viscera in both species. The organs were removed separately and preserved by both freezing and immersion in a container filled with 10% neutral buffered formalin solution for further examination. Photographs of the organs insitu and isolated were taken, discussed and compared with that of the other lab mammals in previous literatures. The study confirmed the absence of the gall bladder and the round ligament of liver in albino rat, while the hepatorenal ligament was absent in albino mouse. Also, the site of renal impression was found to be located on the right lateral hepatic lobe in albino rat while on the caudate process of liver in the albino mouse. Albino rats and mice had a bean shaped smooth unipapillated kidneys, however the position of kidneys greatly varied between both species. The characteristic crescentic-shaped stomach in rats with a tightly closed esophageal opening compared to the thumb-shaped stomach of mice with slightly loose esophageal opening were anatomical remarks. The proper knowledge of the normal morphology and topography of these abdominal viscera would assist veterinarians in designing of therapeutic surgical approaches in abdominal cavity and experimental transplantations.

Key words: Anatomy, Abdominal organs, Albino Rat (Rattus norvegicus) and Albino Mouse (Mus musculus)






Full-text options


Share this Article


Online Article Submission
• ejmanager.com




ejPort - eJManager.com
Refer & Earn
JournalList
About BiblioMed
License Information
Terms & Conditions
Privacy Policy
Contact Us

The articles in Bibliomed are open access articles licensed under Creative Commons Attribution 4.0 International License (CC BY), which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.