Hair Root Structure
The study of hair, including its diseases and care
What is Trichology
Also known as oil
What is sebum
Melanin that consists of Black and Brown Pigment
Eumelanin
Number of layers to a hair strand
What are 3 layers
Hair is composed of a protein called
What is keratin
The outer layer of skin
What is the epidermis
The glands that produce oil
Sebaceous Glands
Bonds that are broken by changes of pH
Salt Bonds
Not all hair type have this
What is a medulla
What is melanin
The two parts of the hair strand
What is hair root and hair shaft
Involuntary muscle that causes goosebumps
Arrector Pili Muscle
These bonds are reformed by drying and cooling
Hydrogen Bonds
The outer protector (bodyguard) of the hair shaft
What is the cuticle
COHNS -Carbon, Oxygen, Hydrogen, Nitrogen, Sulfur
The part of the hair strand that is below the epidermis
What is Hair root
Not found on the soles of your feet or palm of your hands
What is Hair follicle
Side bonds are located in what layer of the hair
The cortex
Where all the change happed in the hair strand
What is the cortex
Melanin that consists of yellow and red pigment
What is Pheomelanin
The Greek term for hair
Trichos
Supplies nutrients that allows hair to grow
If moisture and sunshine can easily access the cortex that means the cuticle is
Open
The ability for hair to stretch and return to its normal shape
What is elasticity
These bonds are broken by chemicals such as relaxers and perms.
Disulfide Bonds