Hair
More Hair
Yes! Hair
So Much Hair
Hair Hair Hair
100
What are the two main parts of hair?
follicle and shaft
100
What part of the hair contains DNA?
follicle
100
What are (2) microscopic properties of hair?
medullary index, medulla pattern, pigment
100
Name (3) regions of the human body from which hair can be derived?
head, eyebrow/lash, beard/mustache, underarm, body, pubic
100
True or False ? The cuticle scales of the hair always point toward the follicle.
false
200
Would hair WITHOUT the follicle class or individual evidence? Explain
Class
200
Name (2) macroscopic properties of hair.
length, texture, color, thickness
200
True or False? Every hair on a person's head has the same medulla pattern.
false
200
Name (1) medulla pattern.
continuous, interrupted, fragmented, absent
200
what protein composes a strand of hair?
keratin
300
Would hair WITH the follicle be considered class or individual evidence?
individual - dna present in follicle
300
What are (2) of the (3) parts of the hair shaft?
cuticle, cortex, medulla
300
What part of the hair is represented by letter A?
cortex
300
What part of the hair is letter B?
medulla
300
what is one difference between human and animal hair?
animals have a medulla larger than human hair
400
What famous political leader's death was investigated using samples of his hair?
Napoleon Bonaparte
400
Name (1) property of the hair's CUTICLE.
protective layer; transparent, contains scales
400
What part of the hair is represented by letter F?
follicle
400
Name a characteristic of Asian hair.
dense, straight, dark, round with large diameter
400
True or False: The cortex of the hair contains pigment (color).
true
500
What part of the hair is letter C?
cuticle
500
List (1) fact about the hair's MEDULLA?
can have a fragmented, continuous, absent or interrupted pattern. It is the hair's inner portion
500
Calculated the medullary index of a hair whose diameter is 115 microns wide and whose medulla measures 60 microns. Is this human or animal hair?
.52 — means it's animal
500
The hairs of a man were found with the follicle in tact. The hair was 19 mm from follicle to tip. If hair grows approximately .44 mm per day, how old is the tip of the hair?
43.18 days (will accept 43 - 44)
500
True or False? Hair can show investigators if the individual had a habit of drug use.
True