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Scanning electron micrograph of filiform and FU of bats showing (A) leaf-like filiform papillae (LFi) overlapping each other at the lateral sides of the tong ue, an abundant number of FFi throughout the whole surface of the tongue and scattered FU (arrows). (B) FFi with its multiple apical processes (arrow). (C, D) RFU present between the FFi and elevated parts and microgrooves of FU (arrows). (E) RFU and surface microgrooves (arrow head) that contain the taste pore. (F) CFU scattered in between the filiform papillae with its depressed side wall (arrow head). CFU, conical shaped fungiform papillae; FFi, flower-shaped fi liform papillae; FU, f ung iform papillae; LFi, leaf-like filiform papillae.
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The tongue is a specialized vital organ. It aids in mastication, deglutition and food digestion. It also shares in the perception of taste sensation as it possesses various gustatory papillae. It is being subjected to numerous anatomical and histological examinations aiming at exploring the correlation between its morphological features and animal...
Contexts in source publication
Context 1
... directed towards the root of the tongue, while those occupying the lateral parts of tongue were directed medio posteriorly. There were two subtypes of filiform papillae on the dorsal surface of the tongue; flower-like and leaflike filiform papillae. There were few numbers of fungiform papillae distributed between the filiform papillae ( Fig. 2A). The flower-shaped filiform papillae showed a unique morphology. They possessed posteriorly oriented numerous tapered processes which extended from all upper borders of the papillae. These flower-shaped papillae were proved to aid in food retention and gripping on fruits (Fig. 2B). The fungiform papillae were scattered among the ...
Context 2
... of fungiform papillae distributed between the filiform papillae ( Fig. 2A). The flower-shaped filiform papillae showed a unique morphology. They possessed posteriorly oriented numerous tapered processes which extended from all upper borders of the papillae. These flower-shaped papillae were proved to aid in food retention and gripping on fruits (Fig. 2B). The fungiform papillae were scattered among the filiform papillae and revealed two categories according to their form; the first form was round-shaped and characterized by small round depressions on the surface, elevated parts and microgrooves. Taste pore of the taste bud was present in the microdepressed portion or the microgrooves ...
Context 3
... (Fig. 2B). The fungiform papillae were scattered among the filiform papillae and revealed two categories according to their form; the first form was round-shaped and characterized by small round depressions on the surface, elevated parts and microgrooves. Taste pore of the taste bud was present in the microdepressed portion or the microgrooves (Figs. 2-E), while the second form of the papillae was the conical-shaped, with a depression or concave area on its sidewall (Fig. ...
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... form; the first form was round-shaped and characterized by small round depressions on the surface, elevated parts and microgrooves. Taste pore of the taste bud was present in the microdepressed portion or the microgrooves (Figs. 2-E), while the second form of the papillae was the conical-shaped, with a depression or concave area on its sidewall (Fig. ...
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... the tongue [25]. The median sulcus was proved to help in food grinding; when food is put in the mouth, the tongue is depressed along the median sulcus to hold food, then once placed on the tongue, the food is tossed to either side to be grinded by teeth [23]. Findings in bats and hedgehogs revealed the absence of median sulcus as demonstrated in Figs. 2A, 3A. These observations are consistent with and supported by several studies where the authors stated that there is no lingual median sulcus or prominence in the tongue of bats and hedgehogs ...
Similar publications
The fungiform papilla (FP) is a gustatory and somatosensory structure incorporating chorda tympani (CT) nerve fibers that innervate taste buds (TB) and also contain somatosensory endings for touch and temperature. Hedgehog (HH) pathway inhibition eliminates TB, but CT innervation remains in the FP. Importantly, after HH inhibition, CT neurophysiolo...
Citations
... aethiopicus) using histological, histochemical, and ultrastructral approaches to link the feeding habits to the tongue (Huțanu et al., 2022), and Nile grass rat (Massoud & Abumandour, 2019). It appears that the existence of lingual prominence is closely linked to herbivorous feeding habits to grind grass and hard food materials against the hard palate and crush teeth (Haggag et al., 2020). Additionally, the median sulcus was not observed in the desert hedgehog. ...
The present work attempted to provide a comprehensive description of the morphoanatomical, histological, and ultrastructural characteristics of the tongue in the desert hedgehog ( Paraechinus aethiopicus ), and to correlate lingual modifications to the feeding lifestyle. Five adult male hedgehogs were utilized in our investigation. The macroscopic observations revealed elongated, with a moderately pointed apex, tongue and the tongue dorsum lacks both lingual prominence and median sulcus. The main subdivisions of the tongue are radix linguae (root), corpus linguae (body), and apex linguae (apex). The tongue dorsum carries two types of mechanical (conical and filiform) and gustatory (fungiform and circumvallate) papillae. The lingual apex is characterized by the existence of a unique encapsulated muscular structure. Additionally, the lingual glands were interposed between the muscular strands and no lingual glands were detected on the lingual apex. The dorsal surface of the lingual apex exhibited the highest level of keratinization as revealed by histochemical staining while the root showed moderate staining. The topography of the tongue was investigated by scanning electron microscopy (SEM). The obtained results are important to provide basic knowledge that can contribute to better understanding of the nourishment, feeding habits and behavior in this species. Furthermore, the addition of the newly investigated species may help us to determine the evolutionary relationships among species.
A comprehensive list of bat records available from Egypt was compiled from the literature (453 published and unpublished sources), supplemented by few records based on examination of museum specimens. The review of the bat records from Egypt is complemented with distribution maps, summaries of distributional status, and reviews of taxonomic opinions concerning the Egyptian populations of the particular species. From the territory of Egypt, at least 526 records (a number more than twice higher than that presented by Qumsiyeh (1985) in the previous review) of 20 bat species belonging to eight families are known; viz. (8). The occurrence of Nycticeinops schlieffenii in Egypt is here doubted based on the evaluation of the available evidence concerning the two known records. Since the separate species statuses of Hypsugo bodenheimeri (Harrison, 1960) and Pipistrellus deserti Thomas, 1902 were reasonably doubted in previous analyses, these taxa are no more included in the faunal list of Egypt. The previously published restrictions of type localities of Rhinopoma microphyllum, Rhinolophus judaicus Andersen et Matschie, 1904 (= R. mehelyi), Asellia tridens, Taphozous perforatus, Nycteris thebaica, Vespertilio marginatus Cretzschmar, 1830 (= Pipistrellus kuhlii), Vansonia rueppellii, Plecotus christii, Dysopes rueppellii Temminck, 1826 (= Tadarida teniotis), and Nyctinomus aegyptiacus were revised. Nannugo Kolenatii Müller, 1858 is here suggested to be regarded a junior synonym of Vespertilio kuhlii Kuhl, 1817 (= Pipistrellus kuhlii).
