Match the stage of hair growth with its appropriate description.
| Stavka koja se može prevući | arrow_right_alt | Odgovarajuća stavka |
|---|---|---|
catagen stage | arrow_right_alt | active growth period of hair; 80--90% of hairs are in this phase for humans |
telogen phase | arrow_right_alt | period where follicle recedes and the blood supply is reduced |
anagen stage | arrow_right_alt | hair follicles are dormant during this stage; hairs are easily shed |
These 100 shed hairs would most likely be in the ________ stage.
During which phase(s) of hair growth is the follicle actively receding from the hair shaft?
Hairs shed during the telogen phase of growth will most likely not contain
Categorize the following fibers as natural or synthetic.
linen
wool
nylon
cashmere
asbestos
elastane
natural
synthetic
Categorize the following textile samples by their weave patterns.
plain
satin
twill
Give the definition of a fiber and an example of a fiber.
What are the four classes of fibers?
Explain the difference between a destructive and nondestructive test.
An unknown fiber is tested using the burn test to determine its identity. The fiber stops burning when removed from the flame, smells putrid (like burnt hair), and creates a brittle, crumbly black residue.
The fiber's identity is .
There is a mystery textile on your table. Perform a burn test on one of the threads, and use the dissecting microscopes to determine the weave pattern.
type of fiber (determined by burn test):
weave pattern (determined through microscopic analysis):
What type of weave pattern is shown?
Rank the following fibers in terms of their uniqueness and potential value to an investigation.
TOP = most unique/potentially important
white cotton that was recovered 3 days after the initial crime
white cotton
red dyed cotton
cashmere fibers
