scholarly journals Papilar topografy and morphology of the tongue in the E. sexcinctus

2015 ◽  
Vol 32 (03) ◽  
pp. 182-186 ◽  
Author(s):  
A. Silva ◽  
M. Cavalcante ◽  
M. Ferraz ◽  
M. Rizzo ◽  
E. Fortes ◽  
...  
Keyword(s):  
Potassium Chloride ◽  
Feeding Habits ◽  
Morphological Characteristics ◽  
Taste Buds ◽  
Formaldehyde Solution ◽  
Wild Animals ◽  
Sodium Thiopental ◽  
Hematoxylin Eosin ◽  
Masticatory Apparatus ◽  
Different Parts

Abstract Introduction: The Six-banded armadillo (Euphractussexcintus) belongs to Cigunlata order, has diverse feeding habits and masticatory apparatus developed. The tongue, one of the major components of this equipment, has the mucosa papillae, taste buds and tongue glands. Materials and Methods: Six-banded armadillo were submitted to an anesthetic protocol with Tiletamine and zolazepan (Telazol®, Fortdotge, Brazil) and Sodium Thiopental (Thiopentax®, Cristália, Brazil), we proceeded to euthanasia using Potassium Chloride 19.1%, to then fix them in a 10% formaldehyde solution. The tongues were dissected and identified structures. For microscopic processing, segments from different parts of the tongue were subjected to histological routine and stained with hematoxylin-eosin and Masson. Results: The tongue of the six-banded armadillo presents three types of papillae: filiform, fungiform and vallate, with no conical buds and foliate. Still in the tongue mucosa, was observed mucous glands and various taste corpuscles. Some data differ from those same found in other wild animals that have been studied, but are similar to those of the same phylogenetic. Conclusion: The morphological characteristics of the six-banded armadillo's tongue are adapted to the difficulties faced by him during chewing, requiring the tongue, structures that provide you mobility, strength and sensitivity.

scholarly journals Morphological characteristics of the digestive tract of Schizodon knerii (Steindachner, 1875), (Characiformes: Anostomidae): An anatomical, histological and histochemical study

2015 ◽  
Vol 87 (2) ◽  
pp. 867-878 ◽  
Author(s):  
Marcella L. Dos Santos ◽  
Fábio P. Arantes ◽  
Kleber B. Santiago ◽  
José E. Dos Santos
Keyword(s):  
Digestive Tract ◽  
Squamous Epithelium ◽  
Feeding Habits ◽  
Morphological Characteristics ◽  
Goblet Cells ◽  
Taste Buds ◽  
Mucous Cells ◽  
Pyloric Region ◽  
Mucosal Cells ◽  
Stratified Squamous Epithelium

The digestive tracts of 44 specimens of Schizodon knerii were studied using anatomical, histological and histochemical techniques. The mouth has terminal position, the lip epithelium is squamous stratified with mucous, claviform cells and taste buds, teeth have an incisive form and the tongue has a stratified squamous epithelium with mucous cells and taste buds. The oropharynx cavity is formed by gill apparatus and pharyngeal teeth. The oesophagus presented pleated mucosa, a stratified squamous epithelium with mucous cells, oesophageal glands and taste buds. The stomach presented cardiac, fundic and pyloric regions, simple prismatic epithelium with tubular glands, with none in the pyloric region. The intestine contains 11-15 pyloric caeca, a simple prismatic epithelium with brush border, goblet cells and lymphocytes. Mucosal cells, oesophageal glands and goblet cells reacted positively to PAS, amylase + PAS, Ab pH 2.5 and Ab pH 0.5. Gastric prismatic cells reacted positively to PAS, amylase + PAS, but only those in the pyloric region reacted positively to Ab pH 2.5 and Ab pH 0.5. The results improve the understanding of the anatomy of S. knerii feeding habits and the presence of mucosubstances in the epithelium, highlights the importance of glycoproteins for passing food through the digestive tract.

scholarly journals Biochemical and morphological aspects of salivary glands of the predator Brontocoris tabidus (Heteroptera: Pentatomidae)

2007 ◽  
Vol 50 (3) ◽  
pp. 469-477 ◽  
Author(s):  
Dihego de Oliveira Azevedo ◽  
José Cola Zanuncio ◽  
José Salazar Zanuncio Jr. ◽  
Gustavo Ferreira Martins ◽  
Solange Marques-Silva ◽  
...  
Keyword(s):  
Salivary Gland ◽  
Salivary Glands ◽  
Feeding Habits ◽  
Morphological Aspects ◽  
Biochemical Assays ◽  
Heteroptera Pentatomidae ◽  
Different Parts

The aim of this work was to study the feeding habits of the predator Brontocoris tabidus (Heteroptera: Pentatomidae) analyzing the salivary gland complex (SGC). The SGC was dissected and subjected to histological analyses and biochemical assays. Results showed that a pair of bilobed principal salivary glands and one pair of tubular accessory salivary glands form the SGC and different parts of salivary gland synthesizes similar substances. Lipases, a-amylase and trypsin-like enzymes were detected at both lobes of the principal salivary gland. These data together with observations related to the predator's diet suggested that it could be considered an obligate zoophytophagous.

VARIATION IN ANAL FIN RAY COUNT OF THE REDSIDE SHINER RICHARDSONIUS BALTEATUS (RICHARDSON)

1953 ◽  
Vol 31 (3) ◽  
pp. 211-225 ◽  
Author(s):  
C. C. Lindsey
Keyword(s):  
Morphological Characteristics ◽  
Introduced Populations ◽  
Fin Ray ◽  
Parent Stock ◽  
Different Populations ◽  
The Mean ◽  
Redside Shiner ◽  
Richardsonius Balteatus ◽  
Bodies Of Water ◽  
Different Parts

Anal fin rays were counted on 4766 specimens of Richardsonius balteatus from 61 localities in British Columbia. Individual counts varied from 10 to 21, and mean counts of different populations varied from 12.06 to 17.51. Significant differences in counts occurred between different bodies of water, between recently introduced populations and their parent stock, between different parts of the same lake, and between different year classes. Ray counts tended to be higher amongst females in populations with high over-all means, and higher amongst males in populations with low over-all means. A positive correlation was demonstrated between water temperatures recorded in the vicinity of developing fry and the mean numbers of anal rays produced. Within each latitudinal zone a similar correlation occurred between mean ray count and average air temperature during the spawning season, but data on 109 means of populations in U.S.A. and Canada indicated a tendency, probably genetic, towards production, at equivalent temperature, of higher ray count towards the northern end of the range. Loose correlations between anal ray count and certain other morphological characteristics suggest that these may be dependent on more or less common environmental factors but are not linked by direct causality.

scholarly journals Morphological and ultrastructural characteristics of the tongue of wild boar

2020 ◽  
Vol 64 (2) ◽  
Author(s):  
Gabriela de Souza Reginato ◽  
Gabriela Klein Barbosa ◽  
Amanda Olivotti Ferreira ◽  
Bruno Gomes Vasconcelos ◽  
Rose Eli Grassi Rici ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Wild Boar ◽  
Structural Characteristics ◽  
Morphological Characteristics ◽  
Taste Buds ◽  
Flower Bud ◽  
Fungiform Papilla ◽  
Lingual Epithelium ◽  
Lingual Papillae ◽  
Conical Shape

The present study aimed to describe the structural and ultrastructural morphological characteristics of the lingual epithelium and the connective tissue cores (CTCs) of wild boar (Sus scrofa). The tongues were processed for light microscopy, scanning electron microscopy, and transmission electron microscopy. In this study, we revealed the filiform, fungiform, foliate, and vallate papillae. The filiform papilla is elongated with a conical shape and its CTC has a conical shape; the fungiform papilla is rounded with a dome-shape and its CTC is flower bud; the foliate papilla is formed by four pairs of epithelial folds and irregular grooves, and its CTC is thin with adjacent conjunctive projections, and taste buds and serous glands in the epithelial layer have been evidenced; and the vallate papilla is oval surrounded by a groove with increases of epithelium surface, and the CTC is formed by numerous connective projections lined. Also noted were serous gland and taste buds on the medial wall of the vallate papilla. The epithelium has the keratinized, granular, spinous, basal, and lamina propria layers. In conclusion, we found new descriptions and shapes of the CTCs of the lingual papillae. In addition, we demonstrated the epithelium structural characteristics, the nuclear distribution between the epithelial layers, and the ultrastructural aspects of the dorsal epithelium of the tongue.

A description of four Filaria loa from the same patient

Parasitology ◽  
1911 ◽  
Vol 4 (1) ◽  
pp. 7-18 ◽  
Author(s):  
O. V. Huffman ◽  
Wm B. Wherry
Keyword(s):  
Large Scale ◽  
Morphological Characteristics ◽  
Longitudinal Section ◽  
Different Parts

A comparison of the descriptions of the morphological characteristics of Filaria loa by previous authors shows differences which are explained by the study of our uninjured specimens. We have prepared a table (q.v.) which shows the results of the work of various observers together with our own. We believe that most of the drawings so far published are somewhat misleading; we have, therefore, drawn the essential parts as seen through the microscope with an entire diameter and a portion of a longitudinal section in focus. The drawings are not composite or schematic but have been made on a large scale with accuracy in the measurements so as to represent the different parts in proper proportion (see Plate).

scholarly journals A study of the correlation between the feeding habits and the structure of the hind brain in the South Indian cyprinoid fishes

1935 ◽  
Vol 117 (804) ◽  
pp. 258-272 ◽  
Keyword(s):  
Medulla Oblongata ◽  
Feeding Habits ◽  
Water Area ◽  
Taste Buds ◽  
The South ◽  
Structural Variations ◽  
Nerve Fibres ◽  
South Indian ◽  
Mysore State ◽  
Facial Nerves

That the hind brain of fishes shows a high degree of structural variation in different forms has long been known to zoologists. Owen (1866) has stated “The primary division of the brain which consists of the medulla oblongata with the cerebellum and other less constant appendages in fishes is called “epencephalon”; it is relatively larger, occupies a greater portion of the cranium, and is more complex and diversified in this than any of the higher classes of Vertebrata.” The important lobes of the medulla oblongata are the vagal and the facial lobes, which are the terminal centres for the nerve fibres of the vagal and the facial nerves respectively. The size of these lobes depends upon the extent to which their nerve fibres supply the taste buds. Herrick (1928) has pointed out that the taste buds in the pharynx are supplied by the IX and X nerves and those on the snout and the outer surface of the skin are supplied by the VII nerve. The fact that the variation in the structure of the medulla oblongata depends on the distribution of the taste buds had led Evans (1931-32) to a very instructive work on the comparative study of the brains in the British Cyprinoids in relation to their feeding habits. It is endeavoured to point out in this paper certain structural variations in the hind brain of some of the South Indian Cyprinoids in relation to their feeding habits (Cyprinidæ includes Cobitidæ also). Material The fishes have been collected from all the big tanks in the Mysore State, especially from the Marikanive tank (water area 34 square miles) and Sulekere (40 miles in circumference).

scholarly journals New finding of Vaucheria aversa Hassall (Ochrophyta, Xanthophyceae) in Ukraine

2020 ◽  
Vol 12 (1) ◽  
pp. 105-110
Author(s):  
Olena Raida ◽  
Olha Burova ◽  
Igor Olshanskyi
Keyword(s):  
Morphological Variability ◽  
Morphological Characteristics ◽  
Taxonomic Identification ◽  
Formaldehyde Solution ◽  
Common Features ◽  
New Finding ◽  
Short Pedicel ◽  
First Time ◽  
Continental Water Bodies ◽  
Tubular Shape

Vaucheria aversa (Xanthophyta) was recorded for the first time in Ukraine in Sula River, Hydrological Reserve «Artopolot», Poltava Region. It was found in benthos in spring (May 2020) in silty-sandy soil in shallow water. The material was collected and processed according to a common methodology. Sterile samples before the appearance of the gametengians were kept in natural water in petri dishes in well-lit places. This method of «coarse culture», in most cases, allowed to get gametangia within two weeks. The species identification was done with fertile filaments only. 4% formaldehyde solution was used for material fixation. Taxonomic identification of samples was done using a comparative and morphological methods, which includes analysis of morphological variability and verification of the consistency of the studied material with the diagnosis. Thalli of V. aversa are direct, branched, bisexual, 80–90 μm wide. Antheridia are cylindrical, tubular shape, pressed to the filament or slightly raised above it, 119–130 × 41–43 μm. Oogonia erect, sessile, ovoid to subspherical, sometimes placed in pairs, with a curved beak at the front, 190–230 × 140–163 μm. According to morphological characteristics this species is similar to another one from section Tubligerae Walz – V. fontinalis (Linnaeus) T.A. Christensen. Their distinctive and common features are as follows. Filaments of V. fontinalis are narrower (up to 75 μm) than V. aversa (up to 131 μm). Both species are characterized by oogonia grouped together in a row. Antheridia present in quantity 1 or 2 on both sides of oogonia. But the species are very different in size and shape of oogonia: in V. aversa they are sessile, located one at a time or less often two, extended near the base, sharply narrowed at the apex. The beak is directed straight or obliquely up, bent to the side of the oogonia body. In V. fontinalis oogonia are placed in one row, most often in the amount of 1-6, the beak tapers gradually. Anteridia are cylindrical, on short pedicel. V. aversa grew as a part of polyspecies complex of green algae together with representatives of such genera as Cladophora Kützing, Spirogyra Link and Mougeotia C. Agardh. V. aversa is widely distributed in continental water bodies of Europe, Asia and North America, Australia and New Zealand, but is firstly recorded in Ukraine.

STUDY OF MORPHOLOGICAL CHARACTERISTICS OF TAXONOMICALLY SIGNIFICANT AQUATIC AND SEMIAQUATIC FAMILIES IN HETEROPTERA

2017 ◽  
Vol 23 (1) ◽  
Author(s):  
MAMTA KUMARI ◽  
SUSHIL KUMAR
Keyword(s):  
Brackish Water ◽  
Body Shape ◽  
Feeding Habits ◽  
Morphological Characteristics ◽  
Morphological Features ◽  
The Other ◽  
Taxonomic Significance ◽  
Taxonomic Importance ◽  
Copulatory Complex ◽  
Shape And Size

The heteroptera is an important suborder of order hemiptera and includes a large number of aquatic and semiaquatic forms, which are of a taxonomic importance. The study recorded 14 families namely Napidae, Notonectidae Pleidae, Belostomatidae, Naucoridae, Corixidae, Gelastocoreidae, Ochtaridae, Hydrometridae, Velidae Mesoveliidae, Gerridae, Saldidae and Herbridae. Aquatic and semiaquatic heteropteran insects are of variable sizes from 1.5 mm. to 110 mm long living mainly in lentic and lotic fresh water. Some even live in brackish water, only a few species are marine. These are different in morphology and feeding habits from their terrestrial forms. Some are truly aquatic, provided with effective swimming respiratory structure along with modification of body shape and size. Besides the genitalia and copulatory complex of all the species studied has been dealt. The other morphological features of taxonomic significance were also studied. This study finds various morphological features in the members of different aquatic and semiaquatic families of heteroptera.

scholarly journals Bone Tissue Engineering in a Perfusion Bioreactor Using Dexamethasone-Loaded Peptide Hydrogel

Materials ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 919 ◽  
Author(s):  
Marina Panek ◽  
Maja Antunović ◽  
Lidija Pribolšan ◽  
Alan Ivković ◽  
Marijan Gotić ◽  
...  
Keyword(s):  
Bone Tissue ◽  
Morphological Characteristics ◽  
Human Mesenchymal Stem Cells ◽  
Collagen I ◽  
Perfusion Bioreactor ◽  
Engineered Tissue ◽  
Polymerase Chain ◽  
Main Components ◽  
Hematoxylin Eosin

The main goal of this study was the formation of bone tissue using dexamethasone (DEX)-loaded [COCH3]-RADARADARADARADA-[CONH2] (RADA 16-I) scaffold that has the ability to release optimal DEX concentration under perfusion force. Bone-marrow samples were collected from three patients during a hip arthroplasty. Human mesenchymal stem cells (hMSCs) were isolated and propagated in vitro in order to be seeded on scaffolds made of DEX-loaded RADA 16-I hydrogel in a perfusion bioreactor. DEX concentrations were as follows: 4 × 10−3, 4 × 10−4 and 4 × 10−5 M. After 21 days in a perfusion bioreactor, tissue was analyzed by scanning electron microscopy (SEM) and histology. Markers of osteogenic differentiation were quantified by real-time polymerase chain reaction (RT-PCR) and immunocytochemistry. Minerals were quantified and detected by the von Kossa method. In addition, DEX release from the scaffold in a perfusion bioreactor was assessed. The osteoblast differentiation was confirmed by the expression analysis of osteoblast-related genes (alkaline phosphatase (ALP), collagen I (COL1A1) and osteocalcin (OC). The hematoxylin/eosin staining confirmed the presence of cells and connective tissue, while SEM revealed morphological characteristics of cells, extracellular matrix and minerals—three main components of mature bone tissue. Immunocytochemical detection of collagen I is in concordance with given results, supporting the conclusion that scaffold with DEX concentration of 4 × 10−4 M has the optimal engineered tissue morphology. The best-engineered bone tissue is produced on scaffold loaded with 4 × 10−4 M DEX with a perfusion rate of 0.1 mL/min for 21 days. Differentiation of hMSCs on DEX-loaded RADA 16-I scaffold under perfusion force has a high potential for application in regenerative orthopedics.

scholarly journals Dorsal Surface of the Tongue of the Hazel Dormouse Muscardinus Avellanarius: Scanning Electron and Light Microscopic Studies/ Grzbietowa Powierzchnia Języka Orzesznicy Muscardinus Avellanarius: Badania Z Wykorzystaniem Mikroskopu Skaningowego I Świetlnego

2014 ◽  
Vol 59 (1-4) ◽  
pp. 35-47 ◽  
Author(s):  
Katarzyna Wołczuk
Keyword(s):  
Feeding Habits ◽  
Dorsal Surface ◽  
Proximal Part ◽  
Middle Part ◽  
Taste Buds ◽  
Microscopic Studies ◽  
Filiform Papillae ◽  
Hazel Dormouse ◽  
Muscardinus Avellanarius ◽  
Scanning Electron

Abstract The dorsal surface of a hazel dormouse tongue was examined by scanning electron and light microscopy. The tongue of the hazel dormouse is elongated and widened in the proximal part. On the proximal one-third of the tongue a clear median groove is observed. The dorsal lingual surface was covered with five types of papillae: filiform, conical, fungiform, vallate and foliate. The arrangement, shape, size and direction of the filiform papillae vary depending on the region of the tongue. On the proximal part of the tongue, the filiform papillae are saw-like and tilted medioposteriorly, while on the distal part they have a fork-like shape and form a radial pattern with their processes oriented towards the center of the tongue. Fungiform papillae with single taste buds are evenly scattered on the anterior and middle part of the tongue body. On the root of the tongue, three star-like shaped vallate papillae are arranged in the form of a triangle and surrounded by conical papillae. A pair of foliate papillae are found on both edges of the posterior area of the tongue, forming three parallel folds separated by deep grooves. The dorsal surfaces of the vallate and foliate papillae are covered with hard-cornified epithelium, while the lateral surfaces have noncornified epithelium with numerous taste buds. The results of our studies show that the tongue structure of the hazel dormouse is more primitive in comparison with other rodents which is related to their phylogeny and feeding habits.

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