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ORIGINAL ARTICLES
Published online: 2018-07-06
Submitted: 2018-05-11
Accepted: 2018-06-08
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Light and scanning electron microscopy of the tongue of the sand lizard (Lacerta agilis)

Petr Cizek, Pavla Hamouzova, Pavel Kvapil, Michal Kyllar
DOI: 10.5603/FM.a2018.0064
·
Pubmed: 30009360

open access

Ahead of Print
ORIGINAL ARTICLES
Published online: 2018-07-06
Submitted: 2018-05-11
Accepted: 2018-06-08

Abstract

Despite the fact that numerous reptile species are widely studied by the researchers, information describing the detailed structure of particular organs in many reptiles is missing. The tongue of the sand lizard (Lacerta agilis) was examined under the light and scanning electron microscope. It is divided into bifurcated apex, corpus and bifurcated radix. The tip of the lingual apex is devoid of lingual papillae. The remaining dorsal surface of the tongue bears either fused papillae in the form of caudally directed ridges or individual papillae represented by mushroom like or semilunar prominences (lingual apex) or fish scale-like papillae (lingual corpus) and horizontally laid ridges extending in the form of lobulated prominences (lingual corpus, lingual radix). Regardless of the shape, lingual papillae contain numerous muscle fibers and they are all considered to be mechanical.  The lingual epithelium changes from the simple squamous into stratified squamous in the caudal direction. No salivary glands or sensory structures were recognised. This description is to be used mainly for comparative studies. It could also help to understand how different lizards capture the pray.

Abstract

Despite the fact that numerous reptile species are widely studied by the researchers, information describing the detailed structure of particular organs in many reptiles is missing. The tongue of the sand lizard (Lacerta agilis) was examined under the light and scanning electron microscope. It is divided into bifurcated apex, corpus and bifurcated radix. The tip of the lingual apex is devoid of lingual papillae. The remaining dorsal surface of the tongue bears either fused papillae in the form of caudally directed ridges or individual papillae represented by mushroom like or semilunar prominences (lingual apex) or fish scale-like papillae (lingual corpus) and horizontally laid ridges extending in the form of lobulated prominences (lingual corpus, lingual radix). Regardless of the shape, lingual papillae contain numerous muscle fibers and they are all considered to be mechanical.  The lingual epithelium changes from the simple squamous into stratified squamous in the caudal direction. No salivary glands or sensory structures were recognised. This description is to be used mainly for comparative studies. It could also help to understand how different lizards capture the pray.

Get Citation

Keywords

lingual papillae, Lacertidae, morphology, reptiles, SEM

About this article
Title

Light and scanning electron microscopy of the tongue of the sand lizard (Lacerta agilis)

Journal

Folia Morphologica

Issue

Ahead of Print

Published online

2018-07-06

DOI

10.5603/FM.a2018.0064

Pubmed

30009360

Keywords

lingual papillae
Lacertidae
morphology
reptiles
SEM

Authors

Petr Cizek
Pavla Hamouzova
Pavel Kvapil
Michal Kyllar

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