The paper begins with the question of the participation of human subjects in biomedical research, pointing a way from the first principle of the Belmont Report towards the concept of autonomy as expressed by informed consent. From the use of informed consent in experimental medicine, the paper then moves to the application of informed consent in clinical practice. Further, the paper outlines the cultural and philosophical context of the transformation of medicine into biomedicine from the perspective of human subject research, discussing the concept which has played the key role in the ethical framework of both experimental and clinical medicine in the Czech Republic. Finally the paper provides some critical notes on the concept of informed consent and its practice in Czech healthcare., Josef Kuře., and Obsahuje poznámky a bibliografii