Ch. 8: Blood and Blood Spatter

Question 1

Clumping of cells caused by an antigen-antibody response

Answer 1

Agglutination

Question 2

Angle at which blood strikes a target surface relative to the horizontal plane of the target surface

Answer 2

Angle of impact

Question 3

Proteins secreted by white blood cells that attach to specific antigens

Answer 3

Antibodies

Question 4

Substance that provokes an immune response in the body

Answer 4

Antigen

Question 5

Reaction in which antibodies attach to specific antigens; causes agglutination in cross blood-type transfusions

Answer 5

Antigen-antibody response

Question 6

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

Answer 6

Area of convergence

Question 7

The location of a blood source viewed in three dimensions as determined by projecting angles of impact of individual bloodstains

Answer 7

Area of origin

Question 8

Blood projected into a surface as a result of being flung from an object in motion

Answer 8

Cast-off pattern

Question 9

Blood drop created solely as a result of gravity

Answer 9

Passive drop

Question 10

Smaller droplets of blood projected from larger drops of blood upon impact with a surface

Answer 10

Satellite

Question 11

Elongated blood streaks radiating away from the center of a bloodstain

Answer 11

Spine

Question 12

Blood pattern resulting from a lateral transfer from a moving source onto another surface

Answer 12

Swipe

Question 13

Smeared blood pattern created when an object moves through blood that is not completely dried

Answer 13

Wipe