Show:
Types of Hair
Treated Hair
Animal Hair/Human Hair
Life Cycle of Hair
Types of Medulla
100
The type of hair that is predominantly known for being curly.
What is African Hair.
100
What oxidizes the natural pigment of the hair?
What is Bleaching it.
100
is the medulla in humans or animals bigger?
What is animal hair.
100
what are the 3 stages of the life cycle of hair called?
What is anagen, catagen, telogen.
100
On a hair shaft, where is the medulla located?
What is the center of the hair.
200
What does hair color depend on?
What is it varies on the distribution of pigment granules.
200
what chemical in the bleach can damage mtDNA?
What is Peroxide.
200
what is the medullary index?
What is the ratio of the diameter of the medulla to the diameter of the entire hair.
200
how long does the first stage, anagen, last for?
What is 1000 days.
200
how many different patterns of medulla pigmentation are there?
What is 5.
300
How many hairs are usually collected from a suspect/victim?
What is 50
300
What changes the hair color and gives a painted appearance that is easily recognized by forensic examiners?
What is Dyeing your hair.
300
If looking at the medullary index, what would it have to be to be an animal?
What is 0.5 or greater.
300
About what percent of all human hair is in the anagen stage?
What is 80%-90%
300
Does everyone need to have a medulla?
What is no it can be absent.
400
What is the most common way hairs from different parts of the body are distinguished?
What is Cross-sectional shape.
400
how fast does the human hair grow per month?
What is 1.3 cm per month.
400
if looking at the medullary index what would it have to be to be a human?
What is 0.33 or less.
400
About what percentage of hair growth does the catagen stage account for?
What is 2%
400
what can the medulla contain?
What is pigment granules.
500
What zre the six types of hair on the same person?
What is head hair, eyebrows/eyelashes hair, beard/mustache hair, underarm hair, body hair, and pubic hair.
500
When dyeing hair does the cuticle and cortex change color as well as the medulla?
What is yes.
500
what is the definition of Imbricate?
What is human hair has cuticle scales that are flattened and narrow.
500
On average about how many hairs from your head do you lose per day?
What is 100.
500
if a medulla pattern is continuous, what type of broken pigmented line does it have?
What is one unbroken line of color.