Fact sheets for the cardiovascular system based on the Level 3 CTECH Health and Social Care specification, Includes content for : LO1.1-LO1.2- The composition ,structure and function of blood LO1.3 - LO1.4 - The structure and function of the heart LO1.5 - The control and regulation of the cardiac cycle LO1.6 - Structure and function of blood vessels LO1.7 - Formation of lymph and Tissue fluid