"Physiology" is a publication representing one of the most important modern sciences, as it examines the functions of various organs and systems of the human body. The author of this book, a well-known specialist in the field of medicine, Michael Foster, presents the reader with deep knowledge about the biological processes that occur in the human body. By delving into "Physiology", the reader understands the principles of the work of the heart, kidneys, nervous system and other organs, which are important for maintaining health. This book will become an indispensable source of knowledge for students of medical universities, doctors and everyone who is interested in the principles of functioning of the human body.