which blood components are directly pertinent
Blood is a complex fluid tissue composed of a liquid portion, plasma, and cellular components. Plasma is a mixture of dissolved proteins, salts and other chemicals. The blood cells are of three main types: red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes).Table 1 identifies the major components of blood which can be used for identification purposes.Erythrocytes are manufactured in the bone marrow.lasma is a mixture of dissolved proteins, salts and other chemicals. The blood cells are of three main types: red blood cells (erythrocytes), white blood cells (leukocytes), and platelets (thrombocytes).