<b>Ultrastructural aspects of the tongue in Magellanic Penguins <i>Spheniscus magellanicus</i> (Forster, 1781)
The tongue of birds presents diversified morphologic characteristics, related directly their feeding habits and may be adapted to food capture. Penguins of the Spheniscidae family are pelagic birds that are totally adapted to the marine environment. The objective of this study was to describe the m...
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Universidade Estadual de Maringá
2014-10-01
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doaj-4469dec72a164bdfbf19c016377962d22020-11-24T21:51:17ZengUniversidade Estadual de MaringáActa Scientiarum : Biological Sciences1679-92831807-863X2014-10-0136449149710.4025/actascibiolsci.v36i4.2316811430<b>Ultrastructural aspects of the tongue in Magellanic Penguins <i>Spheniscus magellanicus</i> (Forster, 1781)Juliana Plácido Guimarães0Renata de Britto Mari1Alfredo Le Bas2Maria Angélica Miglino3Universidade de São PauloUniversidade Estadual PaulistaUniversidad de la RepúblicaUniversidade de São PauloThe tongue of birds presents diversified morphologic characteristics, related directly their feeding habits and may be adapted to food capture. Penguins of the Spheniscidae family are pelagic birds that are totally adapted to the marine environment. The objective of this study was to describe the morphology of the tongue in Magellanic penguins (Spheniscus magellanicus). In order to investigate these characteristics, six tongues of juvenile S. magellanicus were collected and their morphology analyzed macroscopically and microscopically. The tongue of the Magellanic penguin has a fusiform shape with a round apex that is narrower than the root, following the shape of the beak. The epithelium of the tongue of the Magellanic penguin showed to be stratified and very keratinized, with the presence of lingual papillae that showed a caudally inclined apex. The neighboring connective tissue showed absence of mucous glands. The cartilaginous skeleton was observed in the medial region of the tongue, extending from the base to the apex. The structure of the tongue of the Magellanic penguin showed to be similar to that of other penguin species, but also showed peculiar characteristics that were not observed in other bird families.http://186.233.154.254/ojs/index.php/ActaSciBiolSci/article/view/23168lingual papillaemorpuologySpheniscidaeultrastructure |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Juliana Plácido Guimarães Renata de Britto Mari Alfredo Le Bas Maria Angélica Miglino |
spellingShingle |
Juliana Plácido Guimarães Renata de Britto Mari Alfredo Le Bas Maria Angélica Miglino <b>Ultrastructural aspects of the tongue in Magellanic Penguins <i>Spheniscus magellanicus</i> (Forster, 1781) Acta Scientiarum : Biological Sciences lingual papillae morpuology Spheniscidae ultrastructure |
author_facet |
Juliana Plácido Guimarães Renata de Britto Mari Alfredo Le Bas Maria Angélica Miglino |
author_sort |
Juliana Plácido Guimarães |
title |
<b>Ultrastructural aspects of the tongue in Magellanic Penguins <i>Spheniscus magellanicus</i> (Forster, 1781) |
title_short |
<b>Ultrastructural aspects of the tongue in Magellanic Penguins <i>Spheniscus magellanicus</i> (Forster, 1781) |
title_full |
<b>Ultrastructural aspects of the tongue in Magellanic Penguins <i>Spheniscus magellanicus</i> (Forster, 1781) |
title_fullStr |
<b>Ultrastructural aspects of the tongue in Magellanic Penguins <i>Spheniscus magellanicus</i> (Forster, 1781) |
title_full_unstemmed |
<b>Ultrastructural aspects of the tongue in Magellanic Penguins <i>Spheniscus magellanicus</i> (Forster, 1781) |
title_sort |
<b>ultrastructural aspects of the tongue in magellanic penguins <i>spheniscus magellanicus</i> (forster, 1781) |
publisher |
Universidade Estadual de Maringá |
series |
Acta Scientiarum : Biological Sciences |
issn |
1679-9283 1807-863X |
publishDate |
2014-10-01 |
description |
The tongue of birds presents diversified morphologic characteristics, related directly their feeding habits and may be adapted to food capture. Penguins of the Spheniscidae family are pelagic birds that are totally adapted to the marine environment. The objective of this study was to describe the morphology of the tongue in Magellanic penguins (Spheniscus magellanicus). In order to investigate these characteristics, six tongues of juvenile S. magellanicus were collected and their morphology analyzed macroscopically and microscopically. The tongue of the Magellanic penguin has a fusiform shape with a round apex that is narrower than the root, following the shape of the beak. The epithelium of the tongue of the Magellanic penguin showed to be stratified and very keratinized, with the presence of lingual papillae that showed a caudally inclined apex. The neighboring connective tissue showed absence of mucous glands. The cartilaginous skeleton was observed in the medial region of the tongue, extending from the base to the apex. The structure of the tongue of the Magellanic penguin showed to be similar to that of other penguin species, but also showed peculiar characteristics that were not observed in other bird families. |
topic |
lingual papillae morpuology Spheniscidae ultrastructure |
url |
http://186.233.154.254/ojs/index.php/ActaSciBiolSci/article/view/23168 |
work_keys_str_mv |
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