Gross morphology of the African lion (Panthera leo) heart

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dc.contributor.author Marais, Carmen Alicia
dc.contributor.author Crole, Martina Rachel
dc.date.accessioned 2021-08-18T14:11:44Z
dc.date.issued 2022-10
dc.description.abstract The anatomy of the African lion heart is not well documented, and assumptions are made that the anatomy is comparable to that of the domestic cat. The increasing demand for veterinary intervention in the African lion warrants sound anatomical knowledge of the heart. The heart is situated caudal to the thoracic limbs between ribs 4 and 6. It is covered by the left cranial lung lobe, and cranial and middle lobe of the right lung, respectively, with a prominent cardiac incisure present on the right. Two pericardial ligaments are present, the A. coronaria dextra is dominant, and the Atrium dextrum and Auricula dextra possess a vast network of Mm. pectinati. The massive thoracic limbs, adapted to bring down prey, appear to restrict the cranial thoracic cavity, and as a trade-off, the thoracic viscera are situated more caudally. During intense activity, the heart and lungs compete against each other for space, thus limiting physical activity to short, intense periods. Capacity for sudden increase of cardiac output is facilitated by the extensive Mm. pectinati of the Atrium dextrum. Intracardiac injection is recommended on the right, ventrally in intercostal space 5. The two pericardial ligaments may help to stabilize the heart during intense activity. en_ZA
dc.description.department Anatomy and Physiology en_ZA
dc.description.embargo 2022-04-13
dc.description.librarian hj2021 en_ZA
dc.description.sponsorship The University of Pretoria en_ZA
dc.description.uri http://wileyonlinelibrary.com/journal/azo en_ZA
dc.identifier.citation Marais C.A, Crole M.R. Gross morphology of the African lion (Panthera leo) heart. Acta Zoologica 2022;103:402– 413. https://doi.org/10.1111/azo.12381. en_ZA
dc.identifier.issn 0001-7272 (print)
dc.identifier.issn 1463-6395 (online)
dc.identifier.other 10.1111/azo.12381
dc.identifier.uri http://hdl.handle.net/2263/81363
dc.language.iso en en_ZA
dc.publisher Wiley en_ZA
dc.rights © 2021 The Royal Swedish Academy of Sciences. This is the pre-peer reviewed version of the following article : (name of article), Journal name, vol. 103, no. 4, pp. 402-413, 2022, doi : 10.1111/azo.12381. The definite version is available at : http://wileyonlinelibrary.com/journal/azo. en_ZA
dc.subject African lion (Panthera leo) en_ZA
dc.subject Anatomy en_ZA
dc.subject Heart en_ZA
dc.subject Thorax en_ZA
dc.subject Topography en_ZA
dc.title Gross morphology of the African lion (Panthera leo) heart en_ZA
dc.type Postprint Article en_ZA


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