A comparative study of sporta perimedullaris musculosa in the renicule of six species of cetaceans
Organs and physiological internal systems of diving mammals display diverse and peculiar features. The kidney of cetaceans has been extensively studied and characterized. This organ is subdivided in small functional units called "renicules" displaying a peculiar structure, the sporta perim...
Published in: | Italian Journal of Zoology |
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Language: | English |
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UNIONE ZOOLOGICA ITALIANA
2004
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Online Access: | http://hdl.handle.net/11383/1492005 https://doi.org/10.1080/11250000409356561 |
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ftuninsubriairis:oai:irinsubria.uninsubria.it:11383/1492005 2024-04-21T07:57:53+00:00 A comparative study of sporta perimedullaris musculosa in the renicule of six species of cetaceans TETTAMANTI, GIANLUCA GRIMALDI, ANNALISA DE EGUILEOR, MAGDA ANNA FERRARESE R. RINALDI L. BORTOLOTTO A. DI GUARDO G. Tettamanti, Gianluca Grimaldi, Annalisa Ferrarese, R. Rinaldi, L. Bortolotto, A. DI GUARDO, G. DE EGUILEOR, MAGDA ANNA 2004 http://hdl.handle.net/11383/1492005 https://doi.org/10.1080/11250000409356561 eng eng UNIONE ZOOLOGICA ITALIANA country:CAMERINO place:DIPARTIMENTO BIOLOGIA, MOLECOLARE CELLULARE ANIMALE, UNIVERSITA CAMERINO, 62032 CAMERINO, ITALY info:eu-repo/semantics/altIdentifier/wos/WOS:000223690000005 volume:71 issue:2 firstpage:115 lastpage:121 numberofpages:7 journal:THE ITALIAN JOURNAL OF ZOOLOGY http://hdl.handle.net/11383/1492005 doi:10.1080/11250000409356561 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-4444222711 Cetacean Renicule Sporta perimidullaris mu-scolosa info:eu-repo/semantics/article 2004 ftuninsubriairis https://doi.org/10.1080/11250000409356561 2024-03-28T01:21:01Z Organs and physiological internal systems of diving mammals display diverse and peculiar features. The kidney of cetaceans has been extensively studied and characterized. This organ is subdivided in small functional units called "renicules" displaying a peculiar structure, the sporta perimedullaris musculosa. A comparative study of renicules was made in six species belonging to mysticetes and odontocetes. in all six species, the sporta, a connective tissue basket, was located between the medullary and the cortical regions of renicules. The sporta is mainly composed of a connective stroma and, in several species, the connective tissue (histochemically studied) was interposed among muscle fibres. Within the six studied species, the sporta varied in thickness, which appears to be related to the number, thickness and discontinuity of collagenous fibre bundles. The presence of smooth muscle fibres, evidenced by immunostaining and by electron microscopy analysis, was variable: whereas fibres were numerous in examined toothed whales (Stenella, Delpbinus, Grampus, Tursiops), they were practically absent in baleen whales such as the fin whale Balaenoptera physalus. The data in the present study shed light on the morpho-functional characterization of diving mammal anatomy and support the need to re-examine the general structure of cetacean phylogeny, in line with the hypothesis of Milinkovitch et al. (1994) and Hasegawa et al. (1997). Article in Journal/Newspaper Balaenoptera physalus baleen whales Fin whale toothed whales IRInSubria - Institutional Repository Insubria (Università degli Studi dell’Insubria) Italian Journal of Zoology 71 2 115 121 |
institution |
Open Polar |
collection |
IRInSubria - Institutional Repository Insubria (Università degli Studi dell’Insubria) |
op_collection_id |
ftuninsubriairis |
language |
English |
topic |
Cetacean Renicule Sporta perimidullaris mu-scolosa |
spellingShingle |
Cetacean Renicule Sporta perimidullaris mu-scolosa TETTAMANTI, GIANLUCA GRIMALDI, ANNALISA DE EGUILEOR, MAGDA ANNA FERRARESE R. RINALDI L. BORTOLOTTO A. DI GUARDO G. A comparative study of sporta perimedullaris musculosa in the renicule of six species of cetaceans |
topic_facet |
Cetacean Renicule Sporta perimidullaris mu-scolosa |
description |
Organs and physiological internal systems of diving mammals display diverse and peculiar features. The kidney of cetaceans has been extensively studied and characterized. This organ is subdivided in small functional units called "renicules" displaying a peculiar structure, the sporta perimedullaris musculosa. A comparative study of renicules was made in six species belonging to mysticetes and odontocetes. in all six species, the sporta, a connective tissue basket, was located between the medullary and the cortical regions of renicules. The sporta is mainly composed of a connective stroma and, in several species, the connective tissue (histochemically studied) was interposed among muscle fibres. Within the six studied species, the sporta varied in thickness, which appears to be related to the number, thickness and discontinuity of collagenous fibre bundles. The presence of smooth muscle fibres, evidenced by immunostaining and by electron microscopy analysis, was variable: whereas fibres were numerous in examined toothed whales (Stenella, Delpbinus, Grampus, Tursiops), they were practically absent in baleen whales such as the fin whale Balaenoptera physalus. The data in the present study shed light on the morpho-functional characterization of diving mammal anatomy and support the need to re-examine the general structure of cetacean phylogeny, in line with the hypothesis of Milinkovitch et al. (1994) and Hasegawa et al. (1997). |
author2 |
Tettamanti, Gianluca Grimaldi, Annalisa Ferrarese, R. Rinaldi, L. Bortolotto, A. DI GUARDO, G. DE EGUILEOR, MAGDA ANNA |
format |
Article in Journal/Newspaper |
author |
TETTAMANTI, GIANLUCA GRIMALDI, ANNALISA DE EGUILEOR, MAGDA ANNA FERRARESE R. RINALDI L. BORTOLOTTO A. DI GUARDO G. |
author_facet |
TETTAMANTI, GIANLUCA GRIMALDI, ANNALISA DE EGUILEOR, MAGDA ANNA FERRARESE R. RINALDI L. BORTOLOTTO A. DI GUARDO G. |
author_sort |
TETTAMANTI, GIANLUCA |
title |
A comparative study of sporta perimedullaris musculosa in the renicule of six species of cetaceans |
title_short |
A comparative study of sporta perimedullaris musculosa in the renicule of six species of cetaceans |
title_full |
A comparative study of sporta perimedullaris musculosa in the renicule of six species of cetaceans |
title_fullStr |
A comparative study of sporta perimedullaris musculosa in the renicule of six species of cetaceans |
title_full_unstemmed |
A comparative study of sporta perimedullaris musculosa in the renicule of six species of cetaceans |
title_sort |
comparative study of sporta perimedullaris musculosa in the renicule of six species of cetaceans |
publisher |
UNIONE ZOOLOGICA ITALIANA |
publishDate |
2004 |
url |
http://hdl.handle.net/11383/1492005 https://doi.org/10.1080/11250000409356561 |
genre |
Balaenoptera physalus baleen whales Fin whale toothed whales |
genre_facet |
Balaenoptera physalus baleen whales Fin whale toothed whales |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000223690000005 volume:71 issue:2 firstpage:115 lastpage:121 numberofpages:7 journal:THE ITALIAN JOURNAL OF ZOOLOGY http://hdl.handle.net/11383/1492005 doi:10.1080/11250000409356561 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-4444222711 |
op_doi |
https://doi.org/10.1080/11250000409356561 |
container_title |
Italian Journal of Zoology |
container_volume |
71 |
container_issue |
2 |
container_start_page |
115 |
op_container_end_page |
121 |
_version_ |
1796939313990074368 |