As the name suggests the "Textbook of Basic Concepts of Neurophysiology" aims to provide the readers with the basic insight into functions and the role of nervous system in a user friendly and easy to follow manner, it focus on topics comprehensively and in very lucid manner. It is suitable for undergraduate and post graduate aspirants of various streams of medical and other biological sciences. Also, it may serve as a last minute revision book for the students and a quick reference for practicing physicians and scholars who are willing to have a quick brush up of the nervous functions and regulatory mechanisms. The conceptual line diagrams and tables have also been incorporated to make the things more clear and interesting. The values for various variables have been approximated to the round figures so that the readers can remember the values easily.