A morphological and morphometric study of the right ventricular papillary muscles of autopsied heart of Bangladeshi people.

Fifty formalin-fixed hearts from thirty nine male and eleven female Bangladeshis aged 20 to 70 years and without any known cardiac disorder were used in the present study. In right ventricle, there was a single anterior papillary muscle in 92% cases. The posterior papillary muscle was double in 32% and single in 28% cases. The septal papillary muscle was single in 46% cases while in 30% cases it was absent. The different between males and females in the total number of papillary muscles was statistically non significant. In the right ventricle, the anterior papillary muscles were the longest and the septal papillary muscles were the shortest.