Elapulli Sankaranarayanan Prakash1, Balint Kacsoh2. 1. Professor of physiology, Department of Biomedical Sciences, Mercer University School of Medicine, Macon, Georgia; prakash_es@mercer.edu. 2. Professor of anatomy, histology, cell biology and physiology, Department of Biomedical Sciences, Mercer University School of Medicine, Macon, Georgia.