The Pattern Comparison of Changes of Heart Macro-Structure in the Fowl

Understanding early heart tissue structure, especially the properties of heart morphology is of cardinal interest for varied biomedical disciplines. During the past few years, striking progress has been made in identifying morphology and anatomy of birdʹs heart; but an exhaustive study is not available about avian heart structure related to gender differences. The current study was designed to determine whether sex effects acutely to change heart tissue pattern. Hence selected 20 native adult fowl (to equal number of both sexes) of Shahrekord districts and then hearts were dissected. Heart weight, length and diameter and thickness of left and right ventricles were determined after preparation of tissue sections, myocardial and epicardial layers were measured by micrometer. With respect to the gender, gross and microscopic morphological aspects, indicated no difference between heart weight and length and right ventricle thickness as well as left and right epicardium in both sexes. However, thickness of the left ventricle and myocardium and heart diameter in males exceeds that of females.