Question 1

What makes up blood?

Accepted Answer

red blood cells, white blood cells, plasma and platelets

Question 2

Platelets

Accepted Answer

Thrombocytes, the clotting factors that are carried in the plasma;

Question 3

How much blood does the average adult have inside their body?

Accepted Answer

5 liters

Question 4

How many red blood cells are in two to three drops of blood?

Accepted Answer

about one billion

Question 5

What type of blood is called the universal donor?

Accepted Answer

O

Question 6

What type of blood is the universal recipient?

Accepted Answer

AB

Question 7

spatter

Accepted Answer

bloodstains created from the application of force to the area where the blood originated

Question 8

How will blood spatter look on a hard/non-porous surface?

Accepted Answer

round

Question 9

How will blood spatter look on a jagged or porous surface?

Accepted Answer

jagged edges

Question 10

Projected Blood Stains

Accepted Answer

Patterns that occur when a force is applied to the source of the blood; includes low, medium, or high impact spatters, cast-off, arterial spurting, and expiratory blood blown out of the nose, mouth, and wound

Question 11

Transfer or Contact Bloodstain

Accepted Answer

These are created when a bloody object comes in contact with a target surface; may be sued to identify an object or body part.

Question 12

antibodies

Accepted Answer

Antibodies contained in the blood that defend against foreign materials

Question 13

erythrocyte

Accepted Answer

red blood cell

Question 14

leukocyte

Accepted Answer

white blood cell

Question 15

plasma

Accepted Answer

the fluid portion of blood is also yellowish in color.

Question 16

red blood cells

Accepted Answer

donut-shaped cells that carry oxygen throughout the body

Question 17

white blood cells

Accepted Answer

cells that police the body destroying foreign materials

Question 18

blood type

Accepted Answer

defined by the combination of antigens found on the red blood cell and Rhesus factor: eg. O+ or O-, A+, A-....

Question 19

blood Type A

Accepted Answer

Contains Type A antigens on the red blood cell, and Type B plasma antibodies

Question 20

blood Type B

Accepted Answer

Contains Type B antigens on the red blood cell, and Type A plasma antibodies

Question 21

blood Type AB

Accepted Answer

Contains Type A and Type B antigens on the red blood cell, and no plasma antibodies

Question 22

blood Type O

Accepted Answer

Contains no antigens on the red blood cell, and Type A and Type B plasma antibodies

Question 23

Rhesus factor

Accepted Answer

Surface protein on red blood cells in the ABO blood group: people can be Rh+ or Rh-

Question 24

blood spatter analysis

Accepted Answer

the investigations of patterns created by blood when it drops, is sprayed, or is transferred.

Question 25

angle of impact

Accepted Answer

the angle at which a blood droplet strikes a surface

Question 26

satellite spatter

Accepted Answer

secondary drops formed when some blood breaks free from the main contact drop of blood

Question 27

spines

Accepted Answer

small ridges that radiate from the parent drop that may indicate how high a drop fell from and/or the direction it came from.

Question 28

passive blood spatter

Accepted Answer

blood spatter caused by the falling of blood due to gravity

Question 29

projected blood spatter

Accepted Answer

blood spatter caused by force (other than gravity), such as impact or arterial pressure.

Question 30

transfer blood spatter

Accepted Answer

blood spatter caused by the manual transfer of blood onto a surface.

Question 31

Luminol

Accepted Answer

A substance used to see if blood is present

Question 32

What are the four types of blood

Accepted Answer

A, B, AB, O

Question 33

Spatter Analysis

Accepted Answer

The blood pattern which is based on the size and shape of the blood droplets found at the crime scene

Question 34

Circular Droplets

Accepted Answer

Fall straight down

Question 35

High impact droplets

Accepted Answer

Smaller in diameter

Question 36

Low impact droplets

Accepted Answer

Larger in diameter

Question 37

High height droplets

Accepted Answer

Cause a larger diameter for a blood drop

Question 38

Low height droplets

Accepted Answer

Cause a smaller diameter for a blood drop

Question 39

Blood Spatter Analysis

Accepted Answer

A field of forensic science that deals with the physical properties of blood and the patterns produced under different conditions as a result of carious forces applied to the source of blood

Question 40

High - Velocity Impact Spatter

Accepted Answer

A bloodstain pattern caused by a high speed impact or force to a blood source such as that produced by gunshot, velocity may be 100 ft/sec, generally forming drops less than 1 mm.

Question 41

Coagulation

Accepted Answer

Process where blood will clot to seal a wound and prevent a loss of blood

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