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Morphological structure of the aortic wall in three Delphinid species with shallow or intermediate diving habits: Evidence for diving adaptation.
Mompeó, Blanca; Pérez, Lilian; Fernández, Antonio; Saavedra, Pedro; Rivero, Miguel; Arbelo, Manuel; Arregui, Marina; Suárez-Santana, Cristian; Bernaldo-de-Quiros, Yara.
Afiliación
  • Mompeó B; Department of Morphology, University of Las Palmas de Gran Canaria (ULPGC), Las Palmas, Spain.
  • Pérez L; Department of Morphology, University of Las Palmas de Gran Canaria (ULPGC), Las Palmas, Spain.
  • Fernández A; Division of Histology and Animal Pathology, University Institute of Animal Health and Food Security (IUSA), (ULPGC), Las Palmas, Spain.
  • Saavedra P; Department of Maths, University of Las Palmas de Gran Canaria (ULPGC), Las Palmas, Spain.
  • Rivero M; Division of Histology and Animal Pathology, University Institute of Animal Health and Food Security (IUSA), (ULPGC), Las Palmas, Spain.
  • Arbelo M; Division of Histology and Animal Pathology, University Institute of Animal Health and Food Security (IUSA), (ULPGC), Las Palmas, Spain.
  • Arregui M; Division of Histology and Animal Pathology, University Institute of Animal Health and Food Security (IUSA), (ULPGC), Las Palmas, Spain.
  • Suárez-Santana C; Division of Histology and Animal Pathology, University Institute of Animal Health and Food Security (IUSA), (ULPGC), Las Palmas, Spain.
  • Bernaldo-de-Quiros Y; Division of Histology and Animal Pathology, University Institute of Animal Health and Food Security (IUSA), (ULPGC), Las Palmas, Spain.
J Morphol ; 281(3): 377-387, 2020 03.
Article en En | MEDLINE | ID: mdl-32039518
Some modifications in the vascular system of marine mammals provide adaptive advantages for diving. This study analyses the organisation of the aortic wall in dolphins, observing artery changes in volume and blood pressure for diving behaviour. Samples of three aortic segments (ascending, thoracic and abdominal) of three dolphin species were processed for histological and morphometric studies. The three dolphin species used, striped dolphin (Stenella coeruleoalba), Atlantic spotted dolphin (Stenella frontalis) and common dolphin (Delphinus delphis), have shallow or intermediate diving habits. Our results indicated that the components of the aortic wall of the dolphins had different dispositions in the three selected segments. The aortic wall decreased in thickness along its length due to a loss of the lamellar units in the tunica media and a thinning of the main elements of the lamellar units along the artery. The life stage had little influence on the thickness of the aortic wall except for the ascending aorta. The weight, body length, species or sex of the specimen did not significantly influence the thickness of the wall or the lamellar units. In summary, the histological and morphometric aortic structure in dolphins, in relation to the studied parameters, seems to be similar to that previously described of terrestrial mammals such as pigs, except for a larger difference in the proportion of lamellar units between the ascending and thoracic segments.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Aorta / Adaptación Fisiológica / Buceo / Delfines / Stenella Límite: Animals Idioma: En Revista: J Morphol Año: 2020 Tipo del documento: Article País de afiliación: España Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Aorta / Adaptación Fisiológica / Buceo / Delfines / Stenella Límite: Animals Idioma: En Revista: J Morphol Año: 2020 Tipo del documento: Article País de afiliación: España Pais de publicación: Estados Unidos