The textbook has been written to comply with the curriculum in histology, cytology and embryology for the medical and dentist faculties of a broad range of institutions of higher education of the 3th and 4th levels of accreditation. The textbook contains main chapters of histology, cytology and embryology, outlines the principal characteristics of each tissues and system of organs. The presented material was based on the most recent developments of the world histology, cytology and embryology, taking advantage of terminology in accordance with the requirements to the international nomenclature (histological, anatomical and physiological).