The textbook presents all sections of human physiology in accordance with the program. The chapters “Autonomic Nervous System”, “Endocrine Glands”, “Central Nervous System”, “Analyzers” are most fully presented. The chapter “Physiology of Respiration” gives a new complete classification of hypoxia, created by one of the authors. The textbook for the first time outlines the basics of the physiological functions of the body in connection with data on the pharmacological correction of their disorders. For students of medical and biological faculties and medical institutes studying in the specialties “General Medicine”, “Dentistry” and “Pharmacy”.