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Abumandour MMA, Hanafy BG. Gross and scanning electron microscopic features of the oral cavity (palate, tongue, and sublingual floor) of the Egyptian long-eared hedgehog (Hemiechinus auratus aegyptius). BMC Vet Res 2024; 20:435. [PMID: 39342224 PMCID: PMC11438053 DOI: 10.1186/s12917-024-04261-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Accepted: 09/02/2024] [Indexed: 10/01/2024] Open
Abstract
The study was focused on the anatomical characteristics of the Egyptian long-eared hedgehog's oral cavity by using gross and scanning electron microscopic examinations. The upper lip had an elongated T-shaped snout-like structure. The hard palate had a triangular rostral part (which had a semicircular area and a caudal ridged area with the first 3 or 4 ridges) and a caudal part (which contained seven or eight slightly oblique ridges with raphae). The diamond-incisive papilla is flanked on both sides by a groove and a fissure. The hard palate surface had glandular openings and a microplicae system. The uneven, soft palate's surface had multiple grooves and folds with 12-16 Gemmal papillae. The Gemmal papillary surface had three to four taste pores with microplicae and glandular openings. The dorsal lingual surface had six filiform subtypes: pointed (on the tip, rostral border, and median apical region), triangular (on the lateral apical and circumvallate regions), bifurcated (on the median tip only), leaf-like (on the median body region), branched (on the lateral root region), and small pointed papillae (on the median root). There were two fungiform subtypes: ovals (on the rostral border and lateral region) and rounds (on the median apical region and body). The caudal root part had a triangular arrangement of three circumvallate papillae. In conclusion, the finding confirmed its oral cavity adaptation with its insectivorous feeding habits and Egyptian environment.
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Affiliation(s)
- Mohamed M A Abumandour
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Alexandria University, Abees 10th Post Box: 22785, Alexandria, 21944, Egypt.
| | - Basma G Hanafy
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Alexandria University, Abees 10th Post Box: 22785, Alexandria, 21944, Egypt
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2
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El-Nahass EES, Elwan MM. Comparative histological and ultrastructural features of the tongue of the mallard domestic duck, Anas platyrhynchos f. domestica, Anatidae (Linnaeus, 1758) in different two age stages (post-hatching [P2] and adult female) captured from Egypt. Microsc Res Tech 2024; 87:1183-1200. [PMID: 38289084 DOI: 10.1002/jemt.24504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 12/28/2023] [Accepted: 01/14/2024] [Indexed: 04/19/2024]
Abstract
The domestic duck is classified as a specialist filter-feeder bird living in the water. These birds also use grazing and pecking as terrestrial feeding methods. The tongues of domestic ducks, similar to those of other Anseriformes, exhibit numerous types and shapes of mechanical papillae that serve a number of purposes when collecting food. The current study attempts to describe the morphological characteristics of the tongue as well as the mechanical papillae's development. In addition, the study aims to determine whether the papillae observed post-hatching (P2) exhibit similar morphology to those found in adult female avian species, as well as to investigate the readiness of the tongue to fulfill its feeding function following hatching. The comprehensive examination of lingual mucosa is examined about the structural modifications necessary for this variety of feeding activities. In this study, the tongues of nine young (P2) and adult female were used. The tongue had three distinct parts: the apex, which had a lingual nail on its ventral surface; the body, which exhibits numerous small and large conical papillae on its lateral sides and a lingual prominence in the caudal region; and the root, which is covered with numerous conical papillae of varying sizes. Conical, filiform, and hair-like mechanical papillae, the three types of food filtration apparatus, are present in both stages. The intraoral transfer involves several structures, including the median groove, lingual combs, and the rostral border of the lingual prominence. The rostral border of the lingual prominence is characterized by distinct rows of conical papillae. The histological analysis demonstrated the presence of both keratinized and nonkeratinized epithelium on different tongue regions. The lingual salivary glands in the rostral and caudal lingual salivary glands exhibit a pronounced periodic acid-Schiff-positive reaction. Additionally, the yellow adipose tissue and sensory receptors, namely the Grandry and Herbst corpuscles, which collectively form the bill-tongue organ that monitors the movement of food. These results conclude the presence of microstructural species-specific alterations in specific tongue areas of domestic ducks' lingual mucosa. These modifications are formed by the filtering mechanism and terrestrial feeding mechanisms, such as grazing or pecking. Following hatching, the tongue of the domestic duck undergoes significant development, primarily in preparation for grazing activities. The anatomical and histological structure of the young (P2) tongue exhibited similarities to that of the adult female domestic duck while also displaying certain variations that could potentially be attributed to the bird's habitat and mode of feeding. RESEARCH HIGHLIGHTS: The results of this study concluded that the domestic duck exhibit a complex tongue structure characterized by the arrangement and morphology of its mechanical papillae, the presence of the lingual prominence with distinctive shape and the lingual comb. These features are believed to be adaptations that enable the duck to actively and efficiently filter food particles from water, serving as its primary feeding mechanism. Additionally, the tongue of domestic ducks is specifically adapted to facilitate various terrestrial activities, such as grazing and pecking. This adaptation is achieved through the presence of conical papillae and a lingual nail. These investigations facilitate our comprehension of both the anatomical and histological characteristics of the domestic duck tongue, as well as enhance our understanding of bird adaptations to various feeding mechanisms.
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Affiliation(s)
| | - Mona M Elwan
- Zoology Department, Faculty of Science, Tanta University, Tanta, Egypt
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3
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Čížek P, Goździewska-Harłajczuk K, Hamouzová P, Klećkowska-Nawrot J, Kvapil P. Lingual Ultrastructural and Histochemical Study in the Patagonian Mara (Rodentia: Caviidae, Dolichotis patagonum) in Relation to Other Hystricomorphs. Animals (Basel) 2023; 13:3889. [PMID: 38136926 PMCID: PMC10740948 DOI: 10.3390/ani13243889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 11/27/2023] [Accepted: 12/16/2023] [Indexed: 12/24/2023] Open
Abstract
The study describes the ultrastructure of the tongue in the Patagonian mara (Dolichotis patagonum) using light and scanning electron microscopy. Histochemical methods were used for evaluation of lingual salivary glands. The tongue is divided into a small and rounded apex, a narrow corpus, and a significantly wider radix, with a well-developed lingual prominence. The tip of the apex is free of papillae. The caudal part of the apex and the corpus are covered by filiform papillae. Round fungiform papillae are scattered among them. Papillae on the narrow stalk are conical. The radix contains caudally bent papillae forming wide flat prominences, slender, hook shaped filiform papillae, foliate papillae, and two oval vallate papillae. Taste buds were found on the lateral sides of the foliate and vallate papillae. Purely serous salivary glands are beneath the vallate and foliate papillae. Serous acini and mucous tubules are in the lingual radix. The Patagonian mara is the only hystricomorph rodent with described hyaline cartilage strengthening the lingual radix. Some typical signs of adaptation to herbivorous diet were found. The structure of the tongue is adapted to grass-feeding, as grasses form the main component of their diet.
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Affiliation(s)
- Petr Čížek
- Department of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, University of Veterinary Sciences Brno, 612 42 Brno, Czech Republic;
| | - Karolina Goździewska-Harłajczuk
- Department of Biostructure and Animal Physiology, Faculty of Veterinary Medicine, Wrocław University of Life Sciences, 51-631 Wrocław, Poland;
| | - Pavla Hamouzová
- Department of Physiology, Faculty of Veterinary Medicine, University of Veterinary Sciences Brno, 612 42 Brno, Czech Republic;
| | - Joanna Klećkowska-Nawrot
- Department of Biostructure and Animal Physiology, Faculty of Veterinary Medicine, Wrocław University of Life Sciences, 51-631 Wrocław, Poland;
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4
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Demirci B, Kandil B, Yüksel S, Gültiken ME. Morphological structure of rat tongue using light and scanning electron microscopy. Microsc Res Tech 2023; 86:75-83. [PMID: 36369917 DOI: 10.1002/jemt.24260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 10/24/2022] [Accepted: 11/03/2022] [Indexed: 11/14/2022]
Abstract
The rat is one of the most commonly used animals in biological research and experimental investigations in medicine. The ultrafine structural components of the epithelium differ depending on the anatomy of the animal and the papilla type. Animal adaptation to food types and environmental circumstances may also be linked to morphological diversity. In the current study, seven male Wistar rat tongues were investigated. For scanning electron microscope (SEM), two rat tongues were immersed in a 10% formalin solution and the other two rat tongues were immersed in a 2.5% glutaraldehyde solution. The tongues of three rats were fixed for regular histological evaluation using triple staining. The three primary components of the Wistar rat tongue are the apex, body and root. The apex had a rounded and bifurcated shape. Filiform papillae and gustatory papillae were easily identified on the dorsal side of the tongue. There were three forms of gustatory papillae; fungiform papillae, vallate papillae and foliate papillae. The purpose of this study was to expose the tongue morphology of the Wistar rat species, which is widely used in investigations. Also, we wanted to show that formalin fixation can be utilized for morphological research in SEM. Finally, the Wistar rat tongue was thoroughly investigated and compared to those of other species.
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Affiliation(s)
- Beste Demirci
- Department of Anatomy, Veterinary Faculty, Kastamonu University, Kastamonu, Türkiye
| | - Banu Kandil
- Department of Histology and Embryology, Veterinary Faculty, Siirt University, Siirt, Türkiye
| | - Süleyman Yüksel
- Department of Anatomy, Veterinary Faculty, Kastamonu University, Kastamonu, Türkiye
| | - Murat Erdem Gültiken
- Department of Anatomy, Veterinary Faculty, Ondokuz Mayıs University, Samsun, Türkiye
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Tomiate AN, Barbosa GK, Reginato GDS, Camargo PO, Oliveira MFD, Watanabe IS, Ciena AP. Structural and Ultrastructural Characteristics of the Spix's Yellow-Toothed Cavy ( Galea spixii, Wagler, 1831) Tongue. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2022; 28:1-8. [PMID: 35659819 DOI: 10.1017/s1431927622000861] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The tongue is a fundamental organ in feeding, vocalization, and grooming. It is characterized by evolutionary adaptations reflected by diet, habitat, and function. Rodents are a very diverse mammalian order and the tongue's morphology varies in size, form, and presence of papillae. This work aimed to describe the morphological and ultrastructural aspects of the tongue of Spix's yellow-toothed cavy (Galea spixii, Wagler, 1831). Tongues of Spix's yellow-toothed cavies were analyzed with light microscopy, scanning, and transmission electron microscopy. The results showed that the tongue was divided into apex, body, and root. There were different types of papillae, such as vallate, foliate, laterally placed fungiform, fungiform, filiform, and robust filiform. The epithelium was organized into layers, including keratinized, granulous, spinous, and basal, below were lamina propria, and musculature, which evolved mucous and serous gland clusters. The tongue of Spix's yellow-toothed cavy was structurally and ultrastructurally similar to other rodents and had papillae with similar morphologies to other Caviidae species. However, the presence of robust filiform papillary lines and laterally placed fungiform papillae showed the main differences from other species. This was the first description of the tongue of Spix's yellow-toothed cavy.
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Affiliation(s)
- André Neri Tomiate
- Laboratory of Morphology, Institute of Biosciences, São Paulo State University (UNESP), Rio Claro, São Paulo, Brazil
| | - Gabriela Klein Barbosa
- Laboratory of Morphology, Institute of Biosciences, São Paulo State University (UNESP), Rio Claro, São Paulo, Brazil
| | - Gabriela de Souza Reginato
- Department of Physiological Sciences, Center of Biological Sciences, State University of Londrina, Londrina, Paraná, Brazil
| | - Paula Oliveira Camargo
- Laboratory of Morphology, Institute of Biosciences, São Paulo State University (UNESP), Rio Claro, São Paulo, Brazil
| | | | - Ii-Sei Watanabe
- Laboratory of Morphology, Institute of Biosciences, São Paulo State University (UNESP), Rio Claro, São Paulo, Brazil
- Department of Anatomy, Institute of Biomedical Sciences III (ICB III), University of São Paulo (USP), São Paulo, Brazil
| | - Adriano Polican Ciena
- Laboratory of Morphology, Institute of Biosciences, São Paulo State University (UNESP), Rio Claro, São Paulo, Brazil
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Cizek P, Hamouzova P, Goździewska‐Harłajczuk K, Klećkowska‐Nawrot J, Kvapil P. Ultrastructure of the tongue in the African pygmy hedgehog (
Atelerix albiventris
), comparison within the family
Erinaceidae. ACTA ZOOL-STOCKHOLM 2021. [DOI: 10.1111/azo.12389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Petr Cizek
- Department of Anatomy, Histology and Embryology Faculty of Veterinary Medicine University of Veterinary Sciences Brno Brno Czech Republic
| | - Pavla Hamouzova
- Department of Physiology Faculty of Veterinary Medicine University of Veterinary Sciences Brno Brno Czech Republic
| | - Karolina Goździewska‐Harłajczuk
- Department of Biostructure and Animal Physiology Faculty of Veterinary Medicine Wrocław University of Environmental and Life Sciences Wrocław Poland
| | - Joanna Klećkowska‐Nawrot
- Department of Biostructure and Animal Physiology Faculty of Veterinary Medicine Wrocław University of Environmental and Life Sciences Wrocław Poland
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Microstructure of the Surface of the Tongue and Histochemical Study of the Lingual Glands of the Lowland Tapir ( Tapirus terrestris Linnaeus, 1758) (Perissodactyla: Tapiridae). Animals (Basel) 2020; 10:ani10122297. [PMID: 33291801 PMCID: PMC7762086 DOI: 10.3390/ani10122297] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 11/11/2020] [Accepted: 12/02/2020] [Indexed: 11/17/2022] Open
Abstract
Simple Summary This is a detailed study of the surface morphology of the tongue and the lingual glands of the lowland tapir (Tapirus terrestris), which expands the understanding of the adaptation of this species to habitats. The histological and ultrastructural analysis of the lingual papillae and lingual glands revealed the presence of two types of mechanical papillae, namely the filiform and conical papillae, while papillae with taste buds (including the fungiform papillae, vallate papillae, and foliate papillae) formed the second, less numerous group. The filiform papillae differed from those of Equidae or Rhinocerotidae. The presence of nine vallate papillae, localized in groups of two surrounded by a ring, or individually, was unique for the examined female tapir. In addition, the vallate papillae contained irregular pseudopapillae on their surface. The foliate papillae contained several sulci between each folia. The presence of sparse taste buds in the side wall of the vallate papillae and foliate papillae is unique for the tapir. Compared to other Perissodactyla, the number of taste buds in the tapir is limited, although the features of its tongue surface make it possible to distinguish this species from representatives of Equidae or Rhinocerotidae. Abstract Although the anatomy of the gastrointestinal tract has been characterized in the lowland tapir (Tapirus terrestris), the exact anatomy of its tongue has not been studied. Samples of the lingual papillae and lingual glands were collected from the tongue of an adult female lowland tapir. The microscopic analysis of the structure of the lingual papillae and the histochemical analysis of the secretion of the lingual glands were analyzed. The tongue of the tapir is divided into the apex, body with a distinct lingual prominence, and the root. Its ventral surface is smooth. The most numerous of the mechanical papillae were the filiform papillae, while numerous conical papillae with a sharp apex or more rounded papillae were present in the root of the tongue. There were also nine vallate papillae and pair of foliate papillae. The foliate papillae contained several folds parted by 12–14 grooves. The mucous secretion produced by the lingual glands was more obvious than the serous secretion. The features of the dorsal surface of the tongue as well as the shape and number of the lingual papillae on the surface of the tongue of the examined female tapir differ compared to Equidae or Rhinocerotidae, the other two representatives of Perissodactyla. However, further study is necessary for the synapomorpy of the tapir’s tongue.
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8
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Goździewska‐Harłajczuk K, Klećkowska‐Nawrot J, Hamouzová P, Čížek P. Microstructure of the tongue surface and lingual glands of the Sulawesi bear cuscus,
Ailurops ursinus
(Marsupialia: Phalangeridae)—A light and scanning electron microscopic study. ACTA ZOOL-STOCKHOLM 2020. [DOI: 10.1111/azo.12367] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Karolina Goździewska‐Harłajczuk
- Department of Biostructure and Animal Physiology Faculty of Veterinary Medicine Wrocław University of Environmental and Life Sciences Wrocław Poland
| | - Joanna Klećkowska‐Nawrot
- Department of Biostructure and Animal Physiology Faculty of Veterinary Medicine Wrocław University of Environmental and Life Sciences Wrocław Poland
| | - Pavla Hamouzová
- Department of Physiology Faculty of Veterinary Medicine University of Veterinary and Pharmaceutical Sciences Brno Brno Czech Republic
| | - Petr Čížek
- Department of Anatomy, Histology and Embryology Faculty of Veterinary Medicine University of Veterinary and Pharmaceutical Sciences Brno Brno Czech Republic
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9
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Cizek P, Hamouzova P, Goździewska-Harłajczuk K, Klećkowska-Nawrot J, Kvapil P. Microscopic structure of the tongue in the lesser hedgehog tenrec (Echinops telfairi, Afrosoricida) and its relation to phylogenesis. Anat Sci Int 2020; 95:313-322. [PMID: 31933048 DOI: 10.1007/s12565-019-00522-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 12/17/2019] [Indexed: 12/01/2022]
Abstract
The tongue of the lesser hedgehog tenrec (Echinops telfairi) was evaluated by light and scanning electron microscopy. Dorsal and lateral surfaces of the tongue were densely covered with various types of lingual papillae. Two types of mechanical papillae (filiform and conical) and two types of sensory papillae (fungiform and vallate) were observed. Rostrocaudally, the number of spikes in filiform papillae increased. Filiform, crown-like papillae were found on the radix, as well as large conical papillae with a wide base and a caudally bent single spike. Fungiform papillae were scattered in four rows on the dorsal surface. Three vallate papillae in inverse triangular layout were developed in the area of the lingual radix. Taste buds were found in the sensory papillae, i.e., fungiform and vallate. The lingual glands were predominantly seromucous. These glands were evenly scattered from the caudal portion of the lingual apex to the lingual radix. Purely serous glands were localized close to vallate papillae. A histochemical analysis of glands was performed. Results were compared to the Afrotheria (tenrec's relatives) and Eulipotyphla (animals with similar feeding habits to tenrecs). This study is the first description of the lingual morphology in the member of the Order Afrosoricida. Moreover, it compares the effect of the phylogenetic relation to the effect of the feeding habits on the lingual morphology.
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Affiliation(s)
- Petr Cizek
- Department of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences Brno, Palackého 1946/1, 612 42, Brno, Czech Republic.
| | - Pavla Hamouzova
- Department of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences Brno, Palackého 1946/1, 612 42, Brno, Czech Republic.,Department of Physiology, Faculty of Veterinary Medicine, University of Veterinary and Pharmaceutical Sciences Brno, Palackého 1946/1, 612 42, Brno, Czech Republic
| | - Karolina Goździewska-Harłajczuk
- Department of Biostructure and Animal Physiology, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, 1 Kożuchowska Street, 50-631, Wrocław, Poland
| | - Joanna Klećkowska-Nawrot
- Department of Biostructure and Animal Physiology, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, 1 Kożuchowska Street, 50-631, Wrocław, Poland
| | - Pavel Kvapil
- Zoo Ljubljana, Večna pot 70, 1000, Ljubljana, Slovenia
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10
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Igbokwe CO, Mbajiorgu FE. Anatomical and scanning electron microscopic study of the tongue in the African giant pouched rats (
Cricetomys gambianus
, Waterhouse). Anat Histol Embryol 2019; 48:455-465. [DOI: 10.1111/ahe.12467] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 03/04/2019] [Accepted: 06/15/2019] [Indexed: 12/17/2022]
Affiliation(s)
- Casmir O. Igbokwe
- School of Anatomical Sciences, Faculty of Health Sciences University of Witwatersrand Johannesburg South Africa
- Department of Veterinary Anatomy University of Nigeria Nsukka Nigeria
| | - Felix E. Mbajiorgu
- School of Anatomical Sciences, Faculty of Health Sciences University of Witwatersrand Johannesburg South Africa
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Massoud D, Abumandour MMA. Descriptive studies on the tongue of two micro‐mammals inhabiting the Egyptian fauna; the Nile grass rat (
Arvicanthis niloticus
) and the Egyptian long‐eared hedgehog (
Hemiechinus auritus
). Microsc Res Tech 2019; 82:1584-1592. [DOI: 10.1002/jemt.23324] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 06/02/2019] [Accepted: 06/09/2019] [Indexed: 12/21/2022]
Affiliation(s)
- Diaa Massoud
- Department of BiologyCollege of Science, Jouf University Sakaka Saudi Arabia
- Department of Zoology, Faculty of ScienceFayoum University Fayoum Egypt
| | - Mohamed M. A. Abumandour
- Department of Anatomy and EmbryologyFaculty of Veterinary Medicine, Alexandria University Alexandria Egypt
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12
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Wannaprasert T, Phanthuma‐opas P, Jindatip D. Morphology and microstructure of the tongue of the lesser bamboo rat (
Cannomys badius
). ACTA ZOOL-STOCKHOLM 2019. [DOI: 10.1111/azo.12293] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
| | | | - Depicha Jindatip
- Department of Anatomy, Faculty of Medicine Chulalongkorn University Bangkok Thailand
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13
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Goździewska-Harłajczuk K, Klećkowska-Nawrot J, Barszcz K. Macroscopic and microscopic study of the tongue of the aardvark (Orycteropus afer, Orycteropodidae). Tissue Cell 2018; 54:127-138. [DOI: 10.1016/j.tice.2018.08.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 08/29/2018] [Accepted: 08/29/2018] [Indexed: 01/02/2023]
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Yoshimura K, Shindo J, Kageyama I. Comparative Morphology of the Lingual Papillae and Their Connective Tissue Cores in the Tongue of Pallas's Squirrel (Callosciurus erythraeus thai, Kloss, 1917). Zoolog Sci 2018; 35:353-359. [PMID: 30079839 DOI: 10.2108/zs180020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
We observed the morphology of the papilla linguae (filiform, fungiform, foliate, and vallate) and underlying connective tissue cores (CTCs) in Pallas's squirrel (Callosciurus erythraeus thai) using light and scanning electron microscopy. The tongue was caudally elongated and lacked the lingual torus. Filiform papillae were densely distributed along the dorsal surface of the apex, and the rostral and caudal parts of the corpus, but were attenuated in the lingual root. Two or three vallate papillae that were rounded or elongated were situated at the boundary between the caudal part of the corpus and lingual root, and foliate papillae and associated cone-like processes were observable in the lateral margin of the caudal end. The epithelial surface of filiform papillae had a main process and a few associated processes that varied between short and elongated, depending on the location. Filiform papillae CTCs appeared to have a few processes that caudally surrounded a concavity and were morphologically variable based on location. Moreover, fungiform papillae CTCs appeared to be columnar cores and had a shallow convex curve at the top. The Pallas's squirrel's tongue exhibited transitional morphological characteristics between Rodentia and other mammalian species, in that they lacked the lingual torus and had CTCs of lingual papillae that were somewhat morphologically similar to those of other non-Glires species, especially treeshrews and tamarins, rather than those of other Rodentia species.
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Affiliation(s)
- Ken Yoshimura
- 1 Department of Anatomy, Faculty of Life Dentistry, The Nippon Dental University at Niigata, Niigata, Japan
| | - Junji Shindo
- 2 Laboratory of Wildlife Science, Department of Environmental Bioscience, School of Veterinary Medicine, Kitasato University, Towada, Japan
| | - Ikuo Kageyama
- 1 Department of Anatomy, Faculty of Life Dentistry, The Nippon Dental University at Niigata, Niigata, Japan
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15
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Goździewska-Harłajczuk K, Klećkowska-Nawrot J, Barszcz K, Marycz K, Nawara T, Modlińska K, Stryjek R. Biological aspects of the tongue morphology of wild-captive WWCPS rats: a histological, histochemical and ultrastructural study. Anat Sci Int 2018; 93:514-532. [PMID: 29948977 PMCID: PMC6061249 DOI: 10.1007/s12565-018-0445-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Accepted: 06/01/2018] [Indexed: 12/19/2022]
Abstract
The aim of this study was to characterise the tongue in wild-type rats using several microscopic techniques. Warsaw Wild Captive Pisula Stryjek (WWCPS) rats belong to a lineage of wild-caught rats. The study was carried out on tongues of 15 male and 15 female WWCPS rats. Histological, histochemical and ultrastructural studies were carried out. There were no significant differences between the male and female WWCPS rat tongues. There was a median groove approximately 1 cm long in the apex of the tongue that faded caudally. The intermolar prominence was clearly marked in the distal part of the lingual body. Lingual mechanical papillae located on the surface of the tongue formed four subtypes based on their shape: small filiform papillae, giant filiform papillae, thin elongated filiform papillae and wide filiform papillae. Gustatory papillae formed the second group of papillae and were divided into bud-shaped fungiform papillae, a single vallate papilla surrounded by an incomplete papillary groove and foliate papillae, which were a well-formed and composed of several pairs of folds divided by longitudinal grooves. In the posterior lingual glands (mucoserous and serous), acidic sulphated mucin-secreting cells gave a strong AB pH 2.5 positive reaction, and a positive reaction with the AB pH 1.0 stain for acidic carboxylated mucin. Double AB/PAS staining showed the presence of the majority of mucous cells with predominant of acidic mucins. Positive PAS staining showed the presence of neutral mucin. HDI staining demonstrated a weak positive reaction within Weber’s glands of the WWCPS rat tongue.
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Affiliation(s)
- Karolina Goździewska-Harłajczuk
- Department of Biostructure and Animal Physiology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Norwida 25, 50-375, Wrocław, Poland.
| | - Joanna Klećkowska-Nawrot
- Department of Biostructure and Animal Physiology, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Norwida 25, 50-375, Wrocław, Poland
| | - Karolina Barszcz
- Department of Morphological Sciences, Faculty of Veterinary Medicine, Warsaw University of Life Sciences, Warsaw, Poland
| | - Krzysztof Marycz
- Faculty of Biology, Electron Microscopy Laboratory, Wroclaw University of Environmental and Life Sciences, Wrocław, Poland
| | - Tomasz Nawara
- Faculty of Biology, Electron Microscopy Laboratory, Wroclaw University of Environmental and Life Sciences, Wrocław, Poland
| | | | - Rafał Stryjek
- Institute of Psychology, Polish Academy of Sciences, Warsaw, Poland
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Sadeghinezhad J, Tootian Z, Javadi F. Anatomical and histological structure of the tongue and histochemical characteristics of the lingual salivary glands in the Persian squirrel (Sciurus anomalus). Anat Sci Int 2016; 93:58-68. [DOI: 10.1007/s12565-016-0367-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 08/19/2016] [Indexed: 10/21/2022]
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