The work presented focuses on the aortic valve and on the anatomical district surrounding it, the aortic root. The aim of this thesis is the study of a 3D model of the aortic root representative of the real anatomy in order to carry out experimental tests able to provide results comparable with the patient’s physiological conditions and useful to optimize the valve prosthesis design. An overview of the anatomy and physiology of the heart will be presented. The study of the anatomy of the aortic root is fundamental for the realization of the model, and for this reason the attention will be focused on it and all its aspects, evaluating which are main geometric characteristics.