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http://hdl.handle.net/10553/118336
Título: | Morphological Structure of the Aortic Wall in Deep Diving Cetacean Species: Evidence for Diving Adaptation | Autores/as: | Mompeó Corredera, Blanca Rosa Sacchini, Simona Quintana Montesdeoca, María Del Pino Rivero Santana, Miguel Antonio Consoli ,Francesco Mª Achille Fernández Rodríguez, Antonio Jesús Bernaldo De Quirós Miranda, Yara |
Clasificación UNESCO: | 3109 Ciencias veterinarias | Palabras clave: | Aortic Artery Diving Habit Lamellar Unit Marine Mammal Odontoceti Cardiovascular System |
Fecha de publicación: | 2022 | Publicación seriada: | Veterinary Sciences | Resumen: | This study analyses the aortic wall structure in nine cetacean species with deep diving habits belonging to four Odontoceti families: Ziphiidae, Kogiidae, Physteridae, and Delphinidae. Samples of ascending, thoracic and abdominal aorta were processed for histological and morphometric studies. The elastic component was higher in the proximal aortic segments, and the muscular elements increased distally in all cases. Morphometric analyses showed that all families presented a decrease in the thickness of the arterial wall and the tunica media along the aorta. The reduction was dramatic between ascending and thoracic aorta in the Physeteridae specimens; meanwhile, the other three families showed a more uniform decrease between the ascending, thoracic and abdominal aorta. The decline was not correlated with a reduced elastic or lamellar unit thickness but with a loss of lamellar units. The organization of the elements in the aortic wall did not show essential modifications between the four families, resembling the structure described previously in the shallow and intermediate diving dolphins. Our findings support that the difference in the morphometric characteristics of the different segments in the aortic wall is likely related to the diving habit more than the absolutes values of any other parameter. | URI: | http://hdl.handle.net/10553/118336 | ISSN: | 2306-7381 | DOI: | 10.3390/vetsci9080424 | Fuente: | Veterinary Sciences [EISSN 2306-7381], v. 9 (8), 424, (Agosto 2022) |
Colección: | Artículos |
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