Home|Journals|Articles by Year Follow on Twitter| Subscribe to List

Directory for Medical Articles
 

Open Access

Original Research

Egypt. J. Exp. Biol. (Zoo.). 2011; 7(2): 203-211


COMPARATIVE STUDIES ON THE DORSAL LINGUAL SURFACE OF TWO EGYPTIAN SQUAMATE REPTILES WITH TWO DIFFERENT FEEDING HABITS

Salem S. Bayoumi, Alm-Eldeen A. Abd-Elhameed, El-Sharkawy M. Mohamed.

Abstract
Several studies are concerned to study the mammalian tongue from the morphological standpoint, using modern techniques, in order to propose a functional hypothesis on food-tongue relationship during the successive feeding process. However, no enough data are available in the literature about the correlation between the tongue morphology and the feeding habits of many of the Egyptian reptiles. Therefore, the present study is conducted to clarify the morphological and histological appearance of the dorsal lingual surface of two Egyptian squamate reptiles having two different feeding habits; the insectivorous gecko, Tarentola annularis and the Egyptian vegetarian spiny tail lizard, Uromastyx aegypticus. The dorsal tongue surface is examined morphologically and by light and scanning electron microscopy (SEM). The results revealed that the tongue in both species is macroscopically different. At SEM, the dorsal lingual surfaces of both species are rich in lingual papillae of various shapes and sizes. In gecko, three types of lingual papillae are recognized; dome-shaped, leaf-shaped and broad scale-like papillae on the lingual apex, body and root of the tongue, respectively. In lizard, broad scale-like papillae are observed on the apex, meanwhile transverse parallel folds, broad and short folds, and leaf-like papillae are detected on the tongue body. Moreover, flattened scale-like lingual papillae are found on the lingual root. Histological examination revealed that the dorsal lingual epithelium in both species consists of stratified squamous type which is para-keratinized in gecko and non-keratinized in lizard. The present data indicated that the morphological and histological variations of both tongues may be related to their feeding habits. These results can give a contribution to the knowledge of the tongue anatomy and histology in two widely diffused species in Egypt.

Key words: Reptilia, Tongue, SEM, Light microscopy


Full-text options

Full-text Article


Share this Article


Readers of this article also read the following articles
»Effect of some botanical pesticides on feeding activity of Microtermes najdensis (Isoptera: Termitidae)
»Management of Pseudarthrosis Tibia by Physeal Distraction with Ilizarov Ring Fixator
»A quasi experimental study to assess the effectiveness of structured teaching programme on the knowledge regarding the ill effects of alcoholism among labourers
»Applications of computer science in Pharmacy: An overview
»Detection of Some Pathogenic Organisms From Dairy Farm Milk
»Study of Socio Demographic Predictors of Adherence of Anti Retroviral Therapy (ART) among HIV Positive Patients – A Case Control Study
»The relation of psychological and sociodemographic variables to medication adherence in chronic obstructive pulmonary disease patients: a cross-sectional study in Greece
»Breast Feeding: Practices and Determinants in Rural Area of West Tripura District of India
»Toxic Chemicals Associated With Milk Powder Consumption
»House Dust Mites from Public Health’s Perspective
»Posttraumatic stress disorder in children after Çubuk Tornado: a one year follow up study



Advertisement
Journal of Environmental and Occupational Science

SUBMIT YOUR ARTICLE NOW




ScopeMed.com
BiblioMed Home
Follow ScopeMed on Twitter
Author Tools
eJPort Journal Hosting
About BiblioMed
License Information
Terms & Conditions
Privacy Policy
Contact Us

The articles in Bibliomed are open access articles licensed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License (https://creativecommons.org/licenses/by-nc-sa/4.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.
ScopeMed is a Database Service for Scientific Publications. Copyright © ScopeMed® Information Services.