Blood and Blood Spatter Vocabulary

Agglutination - the clumping of molecules or cells caused by an antigen–antibody reaction Antibodies - proteins secreted by white blood cells that attach to antigens Antigen–antibody Response - a reaction in which antibodies attach to specific antigens Antigens - any foreign substance or cell in the body that reacts with antibodies Cell-surface protein - proteins embedded in the cell membrane

Lines of Convergence - a two dimensional view of the intersection of lines formed by drawing a line through the main axis of at least two drops of blood that indicates the general area of the source of the blood spatter Point of Origin - a three-dimensional view formed using lines of convergence and angles of impact of at least two different drops of blood to identify the source and location of blood splatter Red blood cells - donut-shaped cells that carry oxygen throughout the body

Satellite drop of blood - secondary drop formed when some blood breaks free from the main contact drop of blood 10. White blood cells - cells that police the body by destroying foreign materials