Show:
History of Hair Analysis
Function & Structure of Hair
Stages of Hair Growth
Medulla
Animal Hair vs. Human Hair
100
The victim of the first case in which hair was used to convict the suspect.
Who is Germaine Bichon
100
The location from which the hair shaft is produced.
What is the follicle?
100
The three phases of hair growth.
What is anagen phase, catagen phase, and telogen phase?
100
The location of the medulla.
What is the center of the hair shaft?
100
The type of hair where pigmentation is denser toward the medulla.
What is animal hair?
200
Name one of the two scientists who wrote a forensic science book that included a chapter on hair.
What is Alfred Swaine Taylor or Thomas Stevenson
200
This is where pigment granules are found.
What is the cortex?
200
The initial growth phase of hair.
What is the anagen phase?
200
One unbroken line of color.
What is a continuous medulla pattern?
200
Animal pigments often found in in dogs and cattle.
What are ovoid bodies?
300
The two scientists who published a comprehensive study of hair
Who are Victor Balthazard and Marcelle Lambert
300
The layer of the hair shaft made of over-lapping scales.
What is the cuticle?
300
The root bulb has a club shaped appearance in this hair growth phase.
What is the telogen phase?
300
Pigmented area filling both the medulla and the cortex.
What is a solid medulla pattern?
300
Scale pattern found on human hair.
What is the imbricate pattern?
400
Advances in hair analysis continue today with the following types of tests.
What is chemical tests, neutron activation analysis, and DNA analysis
400
The three layers of the hair shaft.
What is the inner medulla, the cortex, and the outer cuticle?
400
The root of hair is beginning to be pushed out of the follicle in this growth phase.
What is the catagen phase?
400
Pigmented line broken at regular intervals.
What is an interrupted/intermittent medulla pattern?
400
The MI of animal hair.
What is 0.50 or 1/2 or greater?
500
The year Dr. Sydney Smith first used a comparison microscope to analyze hairs side by side
What is 1934
500
The four functions of hair.
What is regulates body temperature, decreases friction, protects against sunlight, and acts as a sense organ?
500
In this hair growth phase, the root bulb has a flame shaped appearance.
What is the anagen phase?
500
The medullary index formula.
What is the diameter of hair's medulla / diameter of the hair?
500
The MI of human hair.
What is 0.33 or 1/3 or less?