Morphology of the cardiovascular system in greater rhea (Rhea americana americana Linnaeus, 1758)
Greater rheas have been the subject of scientific studies in the various areas of veterinary and biology in order to obtain essential information for their captivity management. The aim of this study was to describe the morphology of the greater rhea heart. The 20 animals were incised in sagittal pl...
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| Format: | Article |
| Language: | English |
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Universidade Federal Rural de Pernambuco
2021-10-01
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| Series: | Medicina Veterinária |
| Subjects: | |
| Online Access: | https://journals.ufrpe.br/index.php/medicinaveterinaria/article/view/3582 |
| _version_ | 1797776873567027200 |
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| author | Hélio Noberto Araújo Júnior Ferdinando Vinícius Fernandes Bezerra Radan Elvis Matias Oliveira Herson Silva Costa Gleidson Benevides Oliveira Carlos Eduardo Bezerra Moura Alexsandra Fernandes Pereira Antônio Chaves Assis Neto Moacir Franco Oliveira |
| author_facet | Hélio Noberto Araújo Júnior Ferdinando Vinícius Fernandes Bezerra Radan Elvis Matias Oliveira Herson Silva Costa Gleidson Benevides Oliveira Carlos Eduardo Bezerra Moura Alexsandra Fernandes Pereira Antônio Chaves Assis Neto Moacir Franco Oliveira |
| author_sort | Hélio Noberto Araújo Júnior |
| collection | DOAJ |
| description | Greater rheas have been the subject of scientific studies in the various areas of veterinary and biology in order to obtain essential information for their captivity management. The aim of this study was to describe the morphology of the greater rhea heart. The 20 animals were incised in sagittal plane, then fixed in 3.7% formaldehyde and dissected after 72 h. In addition, samples from the cardiovascular system were collected, processed for hematoxylin-eosin and Gomori Trichrome Staining. The heart is conical in shape, dark red when fresh and is located between the hepatic lobes. It has two atria and two ventricles, and four valves (left and right atrioventricular, aortic and pulmonary). The aorta and pulmonary trunk emerge at the heart base, while the ostia of the cranial and caudal vena cava emerged from the right atrium and the right and left pulmonary veins and the left coronary vein from the left atrium. From the aorta artery, the right and left coronary arteries arose, which originated, respectively, the superficial and conal branches and the profuse, left ventricular and superficial branches, being responsible for the irrigation of the heart. Microscopically the heart was constituted by simple pavement epithelium, rich in loose connective tissue. The aorta and pulmonary arteries were composed of the intima, middle and adventitial tunics. Thus, it is concluded that the morphological findings of greater rhea resemble those described for other birds such as ostrich and Gallus gallus domesticus. |
| first_indexed | 2024-03-12T22:56:05Z |
| format | Article |
| id | doaj.art-97b3cc0e48b540f191206631baa84c54 |
| institution | Directory Open Access Journal |
| issn | 1809-4678 2675-6617 |
| language | English |
| last_indexed | 2024-03-12T22:56:05Z |
| publishDate | 2021-10-01 |
| publisher | Universidade Federal Rural de Pernambuco |
| record_format | Article |
| series | Medicina Veterinária |
| spelling | doaj.art-97b3cc0e48b540f191206631baa84c542023-07-20T00:12:58ZengUniversidade Federal Rural de PernambucoMedicina Veterinária1809-46782675-66172021-10-01153Morphology of the cardiovascular system in greater rhea (Rhea americana americana Linnaeus, 1758)Hélio Noberto Araújo Júnior0Ferdinando Vinícius Fernandes Bezerra1Radan Elvis Matias Oliveira2Herson Silva Costa3Gleidson Benevides Oliveira4Carlos Eduardo Bezerra Moura5Alexsandra Fernandes Pereira6Antônio Chaves Assis Neto7Moacir Franco Oliveira8Programa de Pós-Graduação em Ciência Animal (PPGCA), Laboratório de Morfofisiologia Animal Aplicada (LABMORFA), Universidade Federal Rural do Semi-Árido (UFERSA), Mossoró-RN, BrazilPrograma de Pós-Graduação em Ciência Animal (PPGCA), Laboratório de Morfofisiologia Animal Aplicada (LABMORFA), Universidade Federal Rural do Semi-Árido (UFERSA), Mossoró-RN, BrazilPrograma de Pós-Graduação em Ciência Animal (PPGCA), Laboratório de Morfofisiologia Animal Aplicada (LABMORFA), Universidade Federal Rural do Semi-Árido (UFERSA), Mossoró-RN, BrazilPrograma de Pós-Graduação em Ciência Animal (PPGCA), Laboratório de Morfofisiologia Animal Aplicada (LABMORFA), Universidade Federal Rural do Semi-Árido (UFERSA), Mossoró-RN, BrazilPrograma de Pós-Graduação em Ciência Animal (PPGCA), Laboratório de Morfofisiologia Animal Aplicada (LABMORFA), Universidade Federal Rural do Semi-Árido (UFERSA), Mossoró-RN, BrazilPrograma de Pós-Graduação em Ciência Animal (PPGCA), Laboratório de Morfofisiologia Animal Aplicada (LABMORFA), Universidade Federal Rural do Semi-Árido (UFERSA), Mossoró-RN, BrazilPrograma de Pós-Graduação em Ciência Animal (PPGCA), Laboratório de Biotecnologia Animal (LBA), Universidade Federal Rural do Semi-Árido (UFERSA), Mossoró, RN, BrazilDepartamento de Cirurgia, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo (USP), São Paulo-SP, BrazilPrograma de Pós-Graduação em Ciência Animal (PPGCA), Laboratório de Morfofisiologia Animal Aplicada (LABMORFA), Universidade Federal Rural do Semi-Árido (UFERSA), Mossoró-RN, BrazilGreater rheas have been the subject of scientific studies in the various areas of veterinary and biology in order to obtain essential information for their captivity management. The aim of this study was to describe the morphology of the greater rhea heart. The 20 animals were incised in sagittal plane, then fixed in 3.7% formaldehyde and dissected after 72 h. In addition, samples from the cardiovascular system were collected, processed for hematoxylin-eosin and Gomori Trichrome Staining. The heart is conical in shape, dark red when fresh and is located between the hepatic lobes. It has two atria and two ventricles, and four valves (left and right atrioventricular, aortic and pulmonary). The aorta and pulmonary trunk emerge at the heart base, while the ostia of the cranial and caudal vena cava emerged from the right atrium and the right and left pulmonary veins and the left coronary vein from the left atrium. From the aorta artery, the right and left coronary arteries arose, which originated, respectively, the superficial and conal branches and the profuse, left ventricular and superficial branches, being responsible for the irrigation of the heart. Microscopically the heart was constituted by simple pavement epithelium, rich in loose connective tissue. The aorta and pulmonary arteries were composed of the intima, middle and adventitial tunics. Thus, it is concluded that the morphological findings of greater rhea resemble those described for other birds such as ostrich and Gallus gallus domesticus.https://journals.ufrpe.br/index.php/medicinaveterinaria/article/view/3582heart chamberheartarteryratitesvalve. |
| spellingShingle | Hélio Noberto Araújo Júnior Ferdinando Vinícius Fernandes Bezerra Radan Elvis Matias Oliveira Herson Silva Costa Gleidson Benevides Oliveira Carlos Eduardo Bezerra Moura Alexsandra Fernandes Pereira Antônio Chaves Assis Neto Moacir Franco Oliveira Morphology of the cardiovascular system in greater rhea (Rhea americana americana Linnaeus, 1758) Medicina Veterinária heart chamber heart artery ratites valve. |
| title | Morphology of the cardiovascular system in greater rhea (Rhea americana americana Linnaeus, 1758) |
| title_full | Morphology of the cardiovascular system in greater rhea (Rhea americana americana Linnaeus, 1758) |
| title_fullStr | Morphology of the cardiovascular system in greater rhea (Rhea americana americana Linnaeus, 1758) |
| title_full_unstemmed | Morphology of the cardiovascular system in greater rhea (Rhea americana americana Linnaeus, 1758) |
| title_short | Morphology of the cardiovascular system in greater rhea (Rhea americana americana Linnaeus, 1758) |
| title_sort | morphology of the cardiovascular system in greater rhea rhea americana americana linnaeus 1758 |
| topic | heart chamber heart artery ratites valve. |
| url | https://journals.ufrpe.br/index.php/medicinaveterinaria/article/view/3582 |
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