Volume : V, Issue : XI, November - 2016

Coronary Arteries of Mammals

Dr. Keshaw Kumar

Abstract :

 Hearts of human, buffalo, pig, goat, dog, rabbit and rat (100 of each) were procured from various sources and preserved in 10% formalin. These mammals represented the different orders of class mammalia. Coronary arteries were dissected in each heart. Gross study of the coronary arteries was made to observe commencement, course, termination and dominance. In pig, rabbit and rat right coronary artery was predominating while in goat and dog left coronary artery predominance was seen. In rabbit, ventral interventricular artery, in goat, dorsal interventricular artery and in rat, both the interventricular arteries were absent. Only in 17 out of 100 human hearts and in 33 out of 100 buffalo hearts the left coronary artery predominance was observed. In rest of the human and buffalo hearts right coronary artery predominance was noticed. In goat circumflex arteries deviated inferiorly from coronary sulcus and descending ventricular anch of left circumflex artery replaced dorsal interventricular anch of right circumflex artery. In rat the main trunks of the right and left coronary arteries replaced their circumflex anches and deviated from coronary sulcus to run towards the apex. Dominant coronary artery not only crossed the crux of heart but also gave posterior interventricular and nodal arteries in all the mammals.

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Article: Download PDF   DOI : 10.36106/ijsr  

Cite This Article:

Dr. Keshaw Kumar, Coronary Arteries of Mammals, International Journal of Scientific Research, Volume : 5 | Issue : 11 | November 2016

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