Structure of hair root
What are the two parts that the human hair is divided into?
Hair root and hair shafts
A process which newly formed hair cells in the hair bulb mature filled with carried in and move upward is called?
Keratinization.
Tiny grains of pigment in the cortex that give hair its natural color
Melanin
The name for Lanugo hair.
Vellus hair
Hair loss due to genetics, age, and hormones is?
Androgenic Alopecia
Small involuntary muscle that causes goosebumps.
Arrector Pili Muscle
Name the major elements that make up the human hair.
Carbon oxygen hydrogen nitrogen and sulfur.
What provides natural dark brown to black hair color?
Eumelanin
Long course pigmented hair Found on bodies of both males and females.
Terminal hair
Abnormal Hair loss due to an autoimmune disorder, Leaving patches of hair loss
Alopecia Areata
Lowest part of the hair root, thickened & club shaped
Hair bulb
What is a long chain of amino acids linked together by peptide bonds
Polypeptide chain
Provides natural colors, ranging from Red Ginger to yellow blondes
Pheomelanin
Name the three phases of hair growth
Anagen phase catagen phase, telogen phase
A topical hair loss treatment applied twice a day
Minoxidal
Color and Elasticity are the result of the protein in the.
Cortex
A strong chemical sibon can be broken by extreme heat, permanent waves or chemical relaxers.
Disulfide bonds
Refers to the shape of the hair strands
Wave pattern.
A brief transition. between the growth and the resting phase is called
Catagen phase.
An oral prescription hair loss treatment that only men can take
Finasteride
Only thick coarse hair contains....
A medulla.
A spiral polypeptide chain is called
Helix
What cross shape does straight hair have?
Round cross section
What age is the prime time for hair growth?
15 to 30
Nonmedical options for hair loss that a cosmetologist can provide.
Wigs, toupes, extensions, weaves.