GROWTH SPURT OF VENTRICULAR WALLS AND INTERVENTRICULAR SEPTUM OF HEART IN PRENATAL GOAT

Morphometric studies on 30 goal foeti (CK length 4.00 to 35.00 cm) rev ealed differences in thickness and growth of ventricular walls and int erventricular septum at different levels. The right wall was thinnest. The interventricular septum was thicker than left wall throughout the ventricular length in the all 3 age groups except at middle of the ve ntricle in group 1 foetuses. The right wall revealed maximum (428%) an d minimum (35%) increase at ventral and dorsal third of the ventricle in groups 1-3 and 1-2 respectively. The growth spurt of thickness of i ndividual ventricular walls and interventricular septum and a sum of t hickness of all the walls and interventricular septum (i.e. ventricula r mass) at different ventricular levels revealed greater increase in l ate gestation (groups 2-3) than early (groups 1-2) except right wall i n ventral third of the ventricle. However, the growth spin of total th ickness at 3 ventricular levels of left wail and interventricular sept um revealed greater increase in groups 1-2. The trend or negative corr elation among pairs of ventricular walls increased with advancement of age of the foetus.