I am just first learner who has never studied physiology before,so I always be in trouble to catch up with any lecture in physiology class coz medical book is used in the class are too much complicated!! however,since I start to use this textbook for review then I became to understand any fields in physiology.this is really useful for grasp the meaning of function in a human body. especially, I would like to recommend for student who are non native english speaker.