Forensics 3rd Quarter Exam

Another term for a blood platelet

Thrombocyte

Another term for Red Blood Cell

Erythrocyte

Another term for White Blood Cell

Leukocyte

Blood vessels that carry deoxygenated blood back to the heart

Veins

Blood vessels that carry oxygenated blood away from the heart

Arteries

Proteins secreted by white blood cells that attach to RBCs as an immune response

Antibodies

Substances found on the surface of any foreign molecule or cell in the body that can trigger an immune response

Antigen

The clumping of red blood cells

Agglutination

Blood cells have both A and B antigen proteins

Type AB

Blood cells have neither A nor B antigen proteins

Type O

Blood cells have A antigen proteins

Type A

Blood cells have B antigen proteins

Type B

Blood plasma has anti-A antibodies

Type B

Blood plasma has anti-B antibodies

Type A

Blood plasma has both anti-A and anti-B antibodies

Type O

Blood plasma has neither anti-A nor anti-B antibodies

Type AB

Most common of ABO blood types

Type O

Least common of ABO blood types

Type AB

85 % of the population is considered to have this

Rh+

12 % of the population is considered to have this

Type B

Blood that does not clump in the 3rd testing well during a blood type test

Rh-

Which test uses produces light when possible blood is present?

Luminol

Which test uses antibodies that react to human blood to tell if mammal blood is from a human?

ELISA

Which test reacts with blood stains and turns pink if blood is present?

Kastle-Meyer

Egyptians used what technique to try to cure diseases?

Bloodletting

Blood typing is considered what kind of evidence?

Class

What components of RBCs carry oxygen?

Hemoglobin

Blood is red because it contains:

Iron

Blood is considered to be a type of:

Tissue

Which type of cell is most abundant in blood?

RBC

Which type of blood cells fights disease as part of the immune system?

WBC

Blood plasma is made mostly of:

Water

What is NOT true about blood typing?

It can help determine the manner in which a victim died

Which of the following is NOT true about blood spatter analysis?

f. It can help determine the velocity at which the blood traveled

g. It can be used to determine the angle of impact

h. It shows the direction the blood traveled

i. It can be used to locate the point of origin where the blood came from

j. All of the above are true

J

Blood platelets serve what function?

They help clot blood and repair blood vessel damage

Blood platelets serve what function?

They help clot blood and repair blood vessel damage

Small secondary droplets around the main blood spatter drop are called:

Satellites

A circular drop of blood indicates a blood drop fell:

Straight down, without force

Circular blood drops are common with what type of injury:

Dripping wound

The Rh factor was discovered when studying which organism’s blood?

Monkey

If blood lands on a porous surface, such as wood or ceiling tile, then the edge of the drop of blood may form extensions called:

Spikes

Medium velocity blood spatter measuring 1-4mm is common with what type of injury?

Gunshot

Blood spatter larger than 4mm is common with what injury?

Blunt object impact

Looking at blood through a microscope, how can you determine if it is from a mammal?

It has circular, un-nucleated RBCs

During an antigen-antibody response, what binds to and destroys the foreign invaders?

Y-shaped antibodies

What type of WBC is activated during an antigen-antibody response?

B-lymphocyte

Who should be most concerned with the condition Erthryoblastosis fetalis? be specific

Women with Rh- blood who intend to have children with a Rh+ male