Authors : Amir A. Dhamani
Page Nos : 415-419
Description :
The present study shows the cyclical alternation in the activity of adrenal gland of the bat Hipposiderous lankadiva during sexually quiescence and sexually active period of the reproductive cycle. The adrenal gland is made up of steroidogenic and chromaffin cells. The gland during sexually quiescence period is much smaller than that of sexually active period. The cortex is completely encircles the medulla in Hipposideros lankadiva. The medulla in this species consists of epitheloid cells arranged in smaller groups surrounded by blood capillaries. The Zona glomerulosa consist of numerous bulbous structures which appear as acinus like group of cells. The Zona fasciculata is seen in the form of straight column; one or two cells thick arranged radially that run toward the center of the gland. These cords consist of large polyhedral vacuolated cells. The Zona reticularis has the cells disposed in the form of anastomosing cords and vary in shape and size. The cells are hypertrophied. Cytoplasm is eosinophilic with darkly stained nucleus and more vacuolated. Medulla is entirely surrounded by cortical zone it consist of groups of chromatin cells separated by blood capillaries.
Keywords- Adrenal, Histology, Hipposiderous lankadiva
