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Morphometric Features and Microanatomy of the Lingual Filiform Papillae in the Wistar Rat. BIOLOGY 2022; 11:biology11060920. [PMID: 35741441 PMCID: PMC9219856 DOI: 10.3390/biology11060920] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/13/2022] [Accepted: 06/15/2022] [Indexed: 11/17/2022]
Abstract
The mammalian tongue plays a fundamental role in various physiological and behavioral activities. Significant morphological variations have been recorded in the tongue of several species. This study aims to obtain detailed histological and morphometric information about the filiform papillae on the surface of rat tongue. The tongues of five 10-month-old Wistar rats were utilized, which were later examined with a stereo-microscope. Fragments from the three regions of the tongue were collected for histological investigations. The tongue of the Wistar rat has an intensely keratinized stratified squamous epithelium, with the highest degree of keratinized epithelium covering the filiform papillae. The filiform papillae differ in density, with the highest density recorded on the posterior part of the lingual body and the lowest density on the protuberance. The shortest filiform papillae were observed on the apex of the tongue and the tallest on the anterior part of the lingual body. Interestingly, the orientation of the filiform papillae on the lingual protuberance was inclined posteroanteriorly, in the opposite way as compared to the papillae from all the other regions of the tongue. Histologically, a difference was recorded in the structure of the covering epithelium of the anterior vs. the posterior face of the filiform papillae.
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2
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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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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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4
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Haligur A, Ozkadif S, Alan A. Light and scanning electron microscopic study of lingual papillae in the wolf (
Canis lupus
). Microsc Res Tech 2018; 82:501-506. [DOI: 10.1002/jemt.23193] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 11/12/2018] [Accepted: 11/20/2018] [Indexed: 01/30/2023]
Affiliation(s)
- Ayse Haligur
- Department of Anatomy, Ceyhan Veterinary FacultyCukurova University Ceyhan Adana Turkey
| | - Sema Ozkadif
- Department of Anatomy, Ceyhan Veterinary FacultyCukurova University Ceyhan Adana Turkey
| | - Aydin Alan
- Department of Anatomy, Veterinary FacultyErciyes University Kayseri Turkey
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5
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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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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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7
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Morphological study of the European hedgehog (Erinaceus europaeus) tongue by SEM and LM. Anat Sci Int 2017; 93:207-217. [DOI: 10.1007/s12565-017-0391-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 01/24/2017] [Indexed: 10/20/2022]
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8
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Biological aspect of the surface structure of the tongue in the adult red kangaroo (Macropus rufus) — light and scanning electron microscopy. Biologia (Bratisl) 2016. [DOI: 10.1515/biolog-2016-0082] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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9
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Goździewska-Harłajczuk K, Klećkowska-Nawrot J, Janeczek M, Zawadzki M. Morphology of the Lingual and Buccal Papillae in Alpaca (Vicugna pacos) - Light and Scanning Electron Microscopy. Anat Histol Embryol 2014; 44:345-60. [PMID: 25223623 DOI: 10.1111/ahe.12147] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The aim of this study was the description of the lingual and buccal papillae in adult alpaca (Vicugna pacos) by light and scanning electron microscopy (SEM). The tongue consisted of apex, body and root. Four types of lingual papillae (filiform, fungiform, conical and circumvallate) in addition to two types of buccal papillae were observed. The filiform papillae, some with secondary papillae, were distributed on both the corpus and apex of the tongue, with stratified epithelium, and layer of keratin coat were recognized. The short (small) cone papillae had pointed top, while bunoform papillae were wide with smooth apex. The much less numerous circumvallate papillae with pseudopapillae on the each rim of the caudal lingual body were present with weak layer of keratin and intra-epithelial taste buds. The small fungiform papillae were found on the dorsal lingual surface, while the large fungiform papillae were situated on the ventral surface of the tongue, especially, in rostral part and were round in shape with numerous gustatory pores and very thin keratin coat. Pseudopapillae were present on the buccal conical 'bunoform' papillae surface, while 'elongate' buccal papillae surface was rather softly folded with thin coat of keratin. Microridges were observed in the less keratinized parts of each type of papillae. The orientation of either lingual or buccal papillae into the throat side facilitates the emptying of oral cavity from nutrient and swallowing of food. In conclusion, the anatomical features of the alpaca tongue are an adaptation to the feeding habits.
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Affiliation(s)
- K Goździewska-Harłajczuk
- Department of Animal Physiology and Biostructure, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Kożuchowska 1/3, 51-631, Wroclaw, Poland
| | - J Klećkowska-Nawrot
- Department of Animal Physiology and Biostructure, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Kożuchowska 1/3, 51-631, Wroclaw, Poland
| | - M Janeczek
- Department of Animal Physiology and Biostructure, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, Kożuchowska 1/3, 51-631, Wroclaw, Poland
| | - M Zawadzki
- Veterinary clinic - 'Salamandra', Buraczana 2B, 52-311, Wroclaw, Poland
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