Type of Article:  Original Research

Volume 8; Issue 1.2 (February 2020)

Page No.: 7283-7287

DOI: https://dx.doi.org/10.16965/ijar.2019.354


Sneha. V. Kumar 1, Bhavanaben K. Damor *2.

1 M.S. (Anatomy), Associate Professor, Department of Anatomy, B. J. Medical College, Ahmedabad, Gujarat, India.

*2 M.D. (Anatomy), Tutor, Department of Anatomy, Baroda medical college, Vadodara, Gujarat, India.

Corresponding author: Dr. Bhavanaben K. Damor, Tutor, Department of Anatomy,  Baroda medical college, S.S.G. Hospital, Vadodara- 390001, Gujarat, India, Phone no.: 09427659116,  09727072214 E-Mail: damorbhavana8@gmail.com


Background: Among heart diseases, coronary artery disease is one of the major causes of death in developing countries. Coronary circulation studied by various methods has demonstrated that there is a huge spectrum of variation in the branching pattern of the coronary arteries. Blood supply of the heart is achieved by two coronary arteries originating from the ascending aorta. In present study we prepare casts of coronary arteries by using corrosive cast technique to study the origin, course, termination and branching pattern of right coronary artery with its variations in human hearts.

Materials and Methods: 30 fresh specimens of human hearts which were obtained from the post-mortem room, B.J.Medical College, Ahmedabad. The cannula with cone shaped tip was introduced into both the coronary arteries through the coronary ostia. The lumen was cleaned and after that prepared resin was instilled in coronary ostia. After 24 hours the heart specimen was immersed in concentrated HCL. 30 casts of coronary arteries were prepared and observed.

Results: In All the specimens the right coronary artery ostium was present in the right anterior aortic sinus. Termination of RCA was found at the crux and beyond crux in 21 specimens (70 %); at the right border in 3 specimens (10 %) and at the left border in 5 specimens (16.66 %). right marginal artery terminated at the apex in 23 specimens (76.66 %) and near to the apex in 7 specimens (23.33 %). The PIVA arose from the RCA in 27 specimens (90 %) and from the LCA in 3 specimens (10 %). In 25 specimens (83.33 %). the sinu-atrial nodal artery was found to be originating from RCA and in 5 specimens (16.66 %) it originated from the LCA

Discussion: Anatomical variations of the coronary arteries are important, as decisions with regard to revascularization procedures in many cardiovascular diseases depend on knowledge of the anatomy of each individual artery. Knowledge of the normal and variation in branching  pattern of right coronary artery is helpful to anatomist,  radiologist and cardiologist as this is important for the interpretation of coronary angiography,  various shunt surgery and stenting procedures.

Key word: Right Marginal Artery, Posterior interventricular Artery, Sinu-atrial Nodal Artery, Corrosive Cast.


  1. Allwork SP. The applied anatomy of the arterial blood supply to the heart in man. Anat. Great Britain 1987;153:1-16.
  2. Kalpana, R. A study on principal branches of coronary arteries in humans. J Anat. Soc. India 2003;52(2):137-140.
  3. Olry RJ Short history of vascular injections, with special reference to the heart vessels. Int Soc Plastination 1998;13(1):7-11.
  4. Aultman A, Blythe J, Sowder H, Trotter R, Raoof A. Enhancing the value of organ silicone casts in human gross anatomy education. Journal of the international society for plastination 2003;18:9-13.
  5. Abuchaim DC, Spera CA, Faraco DL, Ribas Filho JM, Malafaia O. Coronary dominance patterns in the human heart investigated by corrosion casting. Rev Bras Cir Cardiovasc 2009;24(4):514-518.
  6. Bhimalli S, Dixit D, Siddibhavi M, Shirol VS. A study of variations in coronary arterial system in cadaveric human heart. World journal of science and technology 2011; 1(5): 30-35.
  7. Dharmendra et al Clinically significant anatomical variations of the left coronary artery in human cadaveric hearts. Int j cur res rev, June 2013; 5(12): p. 39-44
  8. Ballesteros LE, Ramirez LM, Quintero ID. Right coronary artery anatomy: anatomical and morphometric analysis. Rev Bras Cir Cardiovasc 2011; 26(2): 230-7.
  9. Standring S, Gray’s Anatomy, 40th London: Harcourt Publishers, Elseveir Churchill Livingstone, 2008; Chapter:56 Heart and great vessels.
  10. Dr Devi Reddy Krishna Reddy et al. A Study of Branching Pattern and Distribution of Coronary Arteries in Adult Human Heart. Journal of medical science and clinical research(JMSCR); Volume 05 Issue 1 December 2017; p. 31603-31613
  11. Hossain A, Ara A, Ara S. Study of right marginal artery in post mortem hearts of adult Bangladeshi people j. 2009; 1(2): 165-168.
  12. James TN, Burch GE. The Atrial Coronary Arteries in Man. Circulation Jan 1958; 17: 90-98.

Cite this article: Sneha. V. Kumar, Bhavanaben K. Damor. A STUDY OF BRANCHING PATTERN OF RIGHT CORONARY ARTERY IN HUMAN HEARTS BY CORROSIVE CAST METHOD. Int J Anat Res 2020;8(1.2):7283-7287. DOI: 10.16965/ijar.2019.303