BONDS...SIDE BONDS
STRUCTURES OF THE HAIR
HAIR & SCALP DISORDERS
HAIR GROWTH
HAIR LOSS
100
This is the weakest, most easily broken type of bond
What is hydrogen
100
This is the technical word for the study of hair.
What is trichology
100
This term means brittle hair
What is fragilitas crinium
100
This is also known as Lanugo Hair
What is vellus hair
100
This term is commonly used for abnormal hair loss
What is alopecia
200
This type of bond is the strongest, only broken by extreme heat as well as highly alkaline solutions
What is dissulfide bonds
200
This is the innermost layer of the hair.
What is the medulla
200
This type of fungal infection of the scalp creates crusts on the scalp called scutula
What is Tinea Favosa
200
This phase of the growth cycle is also known as the resting phase
What is Telogen
200
This form of hair loss is characterized by the total loss of scalp hair
What is Alopecia Totalis
300
This type of bond is weak, and is broken by a change in pH.
What are salt bonds
300
This layer of the hair consists of single, overlapping transparent cells that look like shingles on a roof
What is cuticle
300
Trichoptilosis is a technical term used to describe this condition.
What is split ends
300
This type of growth pattern is characterized by hair growing in a circular pattern
What is a whorl
300
This medication is approved to topically treat hair loss in both men and women
What is Minoxidil (Rogaine)
400
These major elements make up the human hair.
What is COHNS
400
This structure is responsible for providing nutrients to the hair.
What is dermal papilla
400
This variety of canities is characterized by alternating bands of pigmented and non-pigmented hair throughout the length of the hair strand.
What is ringed hair
400
This is the shortest phase of the growth cycle
What is catagen
400
This form of hair loss is caused by an autoimmune disorder that causes the affected follicles to be mistakenly attacked by a person's own immune system
What is alopecia areata
500
This is a long chain of amino acids linked together by peptide bonds (end bonds).
What is polypeptide chain
500
This structure is a fibrous protein core formed by elongated cells containing pigment molecules which are responsible for natural hair colour
What is cortex
500
This disorder of the scalp is a result of a fungus called Malassezia.
What is Dandruff/Pityriasis
500
About 90% of scalp hair is in this phase at any given time
What is anagen
500
This process consists of removing small sections of hair including the follicle, papilla and hair bulb from an area that is more dense and moving them to an area that is less dense.
What is hair transplant
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