Understanding human physiology is a must to learn clinical medicine and its applications. As the medical education is shifting from discipline-based learning to problem- based learning simultaneous learning and training on various systems and diseases of the body become mandatory. The extent and magnitude of developments in physiology and medicine necessitate the simultaneous revision or up gradation of any scientific knowledge. This is the fully revised edition of the practical physiology record book which has been extensively used at the several medical colleges. The revision based on the meaningful suggestions made by the teachers and students alike has enhanced many-fold the practical value of the record book. This edition is aimed to meet the expectations of the physiology faculty and students in all the medical colleges in India and South-East Asia.