I. Structure, Function and Biochemistry of Vessel Wall.- Endothelial Contractility - Its Pros and Cons.- Biochemistry of the Arterial Wall as Related to Transport, Utilization and De Novo Synthesis of Lipids.- Capillary Endothelium - The Possible Site of Action of Different Lipolytic Enzymes.- II. Factors of Thrombosis and their Dependence on Blood Flow.- Deposition of Platelets, Fibrin, and Erythrocytes on Arterial Walls in Experimental Animals and Man.- On the Endoendothelial Fibrin Layer, Fibrin(ogen) Polymerization, and Thrombosis.- Effect of Physical Factors on Platelet Adhesion to Subendothelium.- The Role of Platelets in Arterial Thrombosis.- Experimental Results Relating to the Deposition Hypothesis of Atherosclerosis.- Thrombocyte Function and Age. Studies with Healthy Volunteers, Diabetics and Patients with Vascular Disease.- Thrombocyte Energy Processes.- Fluid-Dynamic Boundary Conditions for Thrombotic Processes in High Shear Environments in vivo.- Vessel Wall - Blood Flow - Thrombolysis.- Venous Response to Surgical Trauma.- III. The Capillary Tract of the Circulation System.- Flow Dynamics in Human Nailfold Capillaries.- Cerebral Blood Barriers.- Quantitative Vessel Wall Permeability in the Venules.- IV. Dynamics in Circulation.- The Instantaneous Velocity Profile in Large Arteries as a Diagnostic Indicator of Abnormalities of the Vessel Wall Surface.- Blood Viscoelasticity and the Vessel Wall in Pulsatile Flow.- Experiences with Prosthetic Vascular Grafts.- V. Biocompatibility of Blood and Artificial Materials.- Interactions of Synthetic and Natural Surfaces with Blood in the Physiological Environment.- Synthetic Membranes in Biomedical Engineering.- Thromboembolic Problems Caused by the Contact between Plastics and Blood Following Cardiac ValveReplacement.- Electrokinetic Processes on Natural and Artificial Blood Vessels.- Initial Events at the Blood/Biomaterial Border.- VI. Antithrombogenic Biomaterials.- Development of Antithrombogenic Artificial Materials: Theory and Practice.- Interaction of Proteins with the Surface of Artificial Materials.- Model of an Antithrombogenic Surface of a Solid.