Blood Comp.
What three things make up the cells in blood?
White Blood Cells
Platelets
Cell surface proteins are called
Antigens
Type AB- can receive blood from which blood types?
A-
B-
AB-
O-
Blood droplets stick together as they fall is because of what property?
Cohesion
As the height a blood droplet falls increase, the diameter of the blood droplet will...
Increase
Name three things found in the plasma.
Water
Proteins
Nutrients
Waste
What antigens can be found on red blood cells?
A, B, Rh
Type O+ blood can be given to which blood types?
A+
B+
AB+
O+
Blood droplets form a curved surface because of what physical property?
Surface Tension
As the angle of impact of a blood droplet decreases, what happens to the blood drops Width to Length ratio?
Goes down (lower W/L ratio)
What is the scientific name for white blood cells?
Leukocytes
On a antibody reaction test, if A and Rh clump, but B does not, what is the blood type?
A+
A patient with B+ blood can receive blood from...
B+/-
O+/-
This blood spatter pattern will form circular blood droplets
Passive fall
Lines through the length of blood droplets used to figure out point of origin are called...
Lines of convergence
What is the name of the molecule that binds to oxygen in RBCs?
Hemoglobin
On an antibody reaction test, if A and B mix freely, and Rh clumps, the blood type is...
O+
What is the name of the reaction that causes the wrong blood type to clump?
Agglutination
This blood spatter pattern will indicate being struck with a high velocity object like a bullet.
Fine mist spatter
Blood spatter pattern that looks like a wave is called...
Arterial spurt
Which cells can be used to obtain individuals evidence from blood? What type of evidence?
White blood cells / DNA
What percent of the population has type B blood?
12%
What are the names of the two presumptive blood tests?
Kastle-meyer
Luminol
Blood from a moving object coated in blood (like a knife) will leave which type of pattern?
Cast off pattern
Blood droplets do not increase in diameter after falling from about 7 feet (~213cm) because they have reached their....
Terminal velocity