Third coronary artery in monkey heart

Acta Veterinaria Hungarica
V NikolićV Stojić

Abstract

Investigations were carried out on 55 monkey (Cercopithecus aethiops, Macaca fascicularis) hearts by stereomicroscopic dissection and measurements. Latex-injected specimens and corrosion casts showed that, as in humans, the hearts were usually (in 98.2% of the cases) supplied by two coronary arteries (CAs)--the left (LCA) and the right coronary artery (RCA), and occasionally (in 1.8% of the cases) also by a third one (TCA). Furthermore, the orifice of the TCA was situated in the right aortic sinus at the same level as the RCA and 0.2 mm in front of it. The LCA and the RCA originated from the corresponding aortic sinuses and the external diameter of the LCA was greater [average: 1.65+/-0.39 (SD) mm] than that of the RCA [average 0.94+/-0.15 (SD) mm] and the TCA (0.8 mm). The LCA orifice was more often above (76.3%) than below the free edge of the left aortic valve leaflet. The longitudinal axis of the aortic root and of the initial part of the LCA formed an angle of 45-120 degrees (average: 52 degrees). The orifice of the RCA was usually above (82.3%) the free edge of the right aortic valve leaflet, and less frequently below it (17.7%). The longitudinal axis of the aortic root and of the initial part of the RCA formed an angle o...Continue Reading

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Citations

Feb 26, 2014·Microscopy and Microanalysis : the Official Journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada·Kati HaenssgenValentin Djonov
Aug 3, 2011·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Valentina NikolićBranislav Filipović
Nov 27, 2015·Acta Veterinaria Scandinavica·Marta KupczyńskaJoanna Klećkowska-Nawrot
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Oct 26, 2016·Annals of Anatomy = Anatomischer Anzeiger : Official Organ of the Anatomische Gesellschaft·G Teofilovski-ParapidB Parapid
May 14, 2020·International Journal of Molecular Sciences·Wenxi ZhangWenchang Tan

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