Blood Types
If a person’s blood cells have A antigen proteins, they have type _____ Blood
What is Type A
•The average adult has about ________of blood
What is 10 Pints
This kind of drop of blood indicates a blood drop fell straight down, without force. This is typical from a dripping wound.
What is a Circular Drop
Can establish the possibility that a specific bodily tissue or fluid is present
What is a Presumptive Test
Which civilization distinguished between arteries and veins.
Who is the Greeks
If a person’s blood cells have neither A nor B antigen proteins, they have type ____blood.
What is Type O
RBCs are called_______________
What is Erythrocytes
Blood striking an object at angles less than 90 degrees produces this kind of shape.
What is a Tear Drop
This mixed with hydrogen peroxide is able to detect hemoglobin left behind by blood.
What is Luminal Powder
The practice of this began around 2500 B.C. with the Egyptians to try to cure diseases.
What is Bloodletting
This blood type makes up for only 4% of the world's blood type.
What is type AB
They are an immune system cell which fight disease and produce antibodies.
What is White Blood Cell or Leukocytes
This equation:
angle of impact= the width of the bloodstain in MM/ the length of the bloodstain in MM
Gives us this important measurement
What is Point-of-Orgin
This test uses antibodies that react to human blood to tell if mammal blood is from human. However in rare cases, it can be confused with chimpanzee and gorilla blood.
What is the ELISA test
In 1940, which famous scientist discovered the Rh protein in the Rhesus monkeys.
Who is Karl Landsteiner
•85% of the population has an additional surface protein called the _____________ and therefore have _______ positive blood.
What is RH Factor or What is RH
They are small cell fragments that assist in blood clotting and repair damaged blood vessels.
What is Platelets or Thrombocytes
This blood spatter is when bleeding victim touching walls or furniture
What is Smears
This test swab turns pink if blood is detected.
What is the Kastle-Meyer Test
Blood typing is considered this kind of evidence.
What is Class Evidence
The clumping of RBCs is called _________
What is Agglutination
Lymphocytes identify foreign substances from germs (bacteria or viruses) in the body and produce ____________ and cells that specifically target them.
What is anitbodies
This is where a victim moving from one place to another
What is a Blood Trail
Can identify a specific biological material
What is a Confirmatory Test
These are small secondary droplets around the main blood spatter drop.
What is Satellites