Blood Type
A, B, AB, and O.
What are the four blood types of humans?
indicates the presences of a specific protein, discovered with a rhesus monkey. determines if blood is negative or positive
What is RH factor?
Evidence that liquid blood has come into contact with a surface.
What is a bloodstain? (or blood spatter)
evidence left behind when a droplet of blood impacts some surface.
What is a bloodstain?
The acute angle formed between the direction of a blood drop and the plane of the surface it strikes.
What is the angle of impact?
A person of type O is also called a universal ____________.
What is donor?
A= clots +
B= not clots -
Rh= clots +
What is A+ ?
type of blood stain created by gravity;drops or pools
What is passive
Bloodstain drop(s) created or formed by the force of gravity acting alone.
What is a passive drop, or bleeding?
What happens to blood splashes as the speed of the source goes faster?
What is length grows?
A person with this type of blood may receive blood from anyone!
What is type AB?
A=not clot -
B=not clot-
Rh= clot+
What is O+?
As height is increased, the size of the blood droplet stain ___________.
What is increases?
A bloodstain pattern caused by an object coming into contact with a previous bloodstain and leaving wipes behind.
What is transfer?
True or False?
The slower the speed of blood spatter, the THINNER the drops on a surface will be.
False
Blood that contains A agglutinogens
What is type A blood?
A liquid that contains the different blood cells, antigens, and other stuff
What is plasma?
The size of a blood droplet would be __________________ on glass than it would be on carpeting. (smaller/larger)
What is larger?
results when an object moves in an arc flings blood onto nearby surfaces.
What is cast off?
The area found by projecting (drawing) lines back from blood splashes to see where they intersect.
what is the point of convergence?
A blood type that contains both A and B antigens
What is O blood type?
Proteins in the blood or secretions that tag, destroy, or neutralize bacteria, viruses, or other harmful toxins, producing an immune response.
What are antibodies?
what does BPA stand for?
What is Bloodstain Pattern Analysis
type of spatter that results when blood spurts from a severed blood vessel.
What is arterial spray?
The jagged pattern that is created when blood drops onto a surface. The higher the drop, the more of this pattern is produced.
What is spining, spikes, or satellites?