Type of Article:  Original Research

Volume 5; Issue 3.3 (September 2017)

Page No.: 4405-4409

DOI: https://dx.doi.org/10.16965/ijar.2017.350


N.Charanya 1, G. Rajathi *2, Vishali.N 3.

1,*2 Assistant Professor,  Department of Anatomy, Ponnaiyah Ramajayam Institute of Medical Sciences, Manamai – Nallur, Chennai, India.

3 Associate Professor, Department of Anatomy, Ponnaiyah Ramajayam Institute of Medical Sciences, Manamai – Nallur, Chennai, India.

Address for Correspondence: Dr. G. Rajathi, Assistant Professor,  Department of Anatomy,  Ponnaiyah Ramajayam Institute Of Medical Sciences, Manamai – Nallur, Ecr, Chennai – 603102, India. E-Mail: rajathi1010@gmail.com


Background:   Mitral / Left Atrio ventricular Orifice is almost vertical in diastole and 450 to the sagittal plane with slight forward tilt. Mitral annulus consists of a collagenous ring where the lamina fibrosa of the valve leaflets are attached. There is variation in the length of annular circumference in different studies due to racial difference.  According to previous reports mitral valve mean circumference is 9.0 cm in males; 7.2cm in females. The present study is aimed at studying the Morphology and morphometry of mitral valve annulus  by dissection method in South Indian adult population.

Materials and Methods:  A total of 60 adult hearts procured from cadavers of dissection hall from Department of Anatomy, SRM Medical College, Sri Ramachandra Medical College, Chennai, were used for study irrespective of sex and age above 50 years. The hearts were meticulously dissected by conventional dissection method to expose the mitral leaflets with the annulus, chordae and papillary muscles. The shape of the mitral orifice was observed. The length of the annulus was measured with the help of a thread and millimeter scale in all hearts.

Results and Conclusion: The overall prevalence of mean annular circumference  was found to be 8.86cm.  The data presented gives the dimensions of mitral valve which may be of interest to Anatomists and Surgeons. Knowledge of normal measurements of the component parts of the valve will help the surgeon during operation to assess the exact mechanical reason for valve insufficiency.

Key words: Mitral valve, Annulus, Atrio ventricular Orifice, Lamina fibrosa.


  1. Henry Gray (38th edition) Gray’s Anatomy (1858).
  2. S. Ranganathan, Textbook of Human Anatomy, 6th Edition, S. Chand & Co., 2010, 435.
  3. S Y Ho, Anatomy of the mitral valve. Heart 2002;88(Suppl IV):iv5–iv10.
  4. Ranganathan N, Lam JHC, Wigle E.D., Morphology of the human mitral valve II. The valve leaflets circulation 1970; 41: 459-67.
  5. Gupta, C., Shetti, VR. And Manju, BVM. Dimensions of the human adult mitral valve in the embalmed cadaver. J.Morphol.Sci.,2013, vol.30,no.1,p.6-10.
  6. Gunal S.A.,Farooqui M.S.,Wabale.R.N. Study of Mitral Valve in Human Cadaveric Hearts. Heart views Oct-Dec 12 Issue 4/ Vol 13.
  7. Patil, D., Mehta, C. and Prajapati, P. Morphology of Mitral valve in Human cadavers. Internet Journal of Cardiology, 2009, vol. 7, p. 2.
  8. Morphology and Morphometric Analysis of the Human mitral valve complex, The TamilNadu Dr.M.G.R. Medical University, 2006, thesis,
  9. Brock R.C. The surgical and pathological anatomy of the mitral valve. Br Heart J 1952; 14: 489-513.
  10. Bulkley B.H. Roberts W.C. Dilatation of the mitral annulus: a rare cause of mitral regurgitation. Am J Med 1975; 59: 457-63.
  11. Gerda L. Van Rijk – Zwikker MD, Ben J. Delemarre, M.D., and Hars A. Huysmans M.D. J Card Surg 1994; 9: 255-261.
  12. Shamim Akthar Cheema ,Anjum Jalal, Naseem Feroze, Jawad Sajid Khan, Dimensions of Mitral Valve of Normal Human Hearts In Pakistani Subjects 1996;29:3-4.
  13. Rusted I.E., Schiefley C.H., Edwards J.H., Studies of the mitral valve 1. Anatomic features of the normal mitral valve and associated structures. Circulation 1952;6:825-31.
  14. Sakai T, Okita Y, Ueda Y, Tahata T, Ogino H, Matsuyama K, Miki S. Distance between mitral anulus and papillary muscles: anatomic study in normal human hearts. The Journal of thoracic and cardiovascular surgery. 1999 Oct 31;118(4):636-41.
  15. Chiechi, MA., Lee, WM. and Thompson, R. Functional anatomy of the normal mitral valve. Journal of thoracic surgery, 1956;32(3):378-98.
  16. Duplessis L.A. Merchand P. The anatomy of the mitral valve and its associated structures. Thorax 1964;19:221-7. PMid:13358125.
  17. Datta A.K. M.M. Mukherjee and S. Ghosh. Morphology and Morphometry of the mitral valve in normal human heart. Indian Heart Journal. 1984;36(6).
  18. Ormiston J.A., Shah P.M. Tei C., et al. Size and motion of the mitral valve annulus in man: 1. A bio-dimensional echocardiographic method and findings in normal subjects. Circulation 1981;64:113.
  19. MC Alpine W.A. Heart and coronary arteries. An anatomical atlas for clinical diagnosis, radiological investigation and surgical treatment. New York. Springer-Verlag, 1965:39-56.
  20. Andrade, NMM., Tinois, E., Vieira, RW., Braile, DM., Petrucci Junior, O., Oliveira, PPMD. and Silveira Filho, LD. Coefficient of proportions of the atrioventricular valves- An anatomical study of valvular segments of normal individuals. Brazilian Journal of Cardiovascular Surgery, 2005;20(3):255-260.

Cite this article: N.Charanya, G. Rajathi, Vishali.N. MORPHOLOGICAL AND MORPHOMETRICAL ANALYSIS OF MITRAL VALVE ANNULUS OF HEART IN HUMAN ADULT CADAVERS. Int J Anat Res 2017;5(3.3):4405-4409. DOI: 10.16965/ijar.2017.350