Structures of Hair
Chemical composition of Hair
Hair Growth and Loss
Disorders of Hair and Scalp
Hair Analysis
100
Outer most layer of the hair, provides a barrier that protects the inner structure. Fibrous protein cor formed by elongated cells containing pigment. innermost part of the hair, not every one has this.
What is cuticle, cortex and medulla
100
The process by which newly formed cells in the hair bulb mature, fill with keratin, move upward lose their nucleus, and die
What is keratinization
100
Short fine unpigmented and downy hair that appears on the body. long, coarse, pigmented hair found on the scalp, legs, and arms on men and women.
What is vellus (languno) and terminal hair
100
Knotted hair, characterized by brittleness and the formation of modular swellings along the hair shaft
What is trichorrhexis nodosa
100
The diameter of the individual hair strand. coarse, medium, or fine
What is Texture
200
refers to the shape of the hair as described as straight, curly or extremely curly
What is wave pattern
200
The major elements that make up human hair.
What is COHNS
200
The brief transition period between growth and resting. The follicle shrinks and detaches from the dermal papilla
What is catagen
200
The technical name for dandruff
What is Pityriasis
200
The number of hairs per square inch. thin, medium or thick
What is density
300
hydroxide relaxers break disulfide bonds and then convert them into__________
What is lanthionine bond
300
Proteins are made of long chains of ____________ which in turn are connected by__________. The long chain of amino acids form a ____________chain
What is amino acids, peptide bond or end bond, polypeptide
300
New cells are actively manufactured in the hair follicle and hair grows and average of 1/2" per month.
What is anagen
300
The technical name for split ends. The only way to eliminate them is to cut the hair.
What is Trichoptilosis
300
The ability of the hair to absorb moisture.
What is porosity
400
hair is composed of _________ protein
What is 90 percent
400
Weak physical bond that is easily broken by heat. Weak physical bond that is broken by changes in pH Strong chemical bond that joins a sulfur atom of two neighboring cycteine amino acids to create one cycteine
What is hydrogen, salt, and disulfide bonds
400
The resting of the hair until it is fully shed.
What is telogan
400
naturally occurring fungus that is present on all human skin. It is the main reason for dandruff.
What is Malassezia
400
The ability of the hair to stretch and return to its original length without breaking.
What is elasticity
500
The tube like depression in the scalp Thickened club shaped structure that forms lower part of hair root. Small cone shaped elevation located at the base of the hair follicle Small involuntary muscle in the base of the hair follicle Oil glands of the skin that are connected to the hair follicle
What is the hair follicle, hair bulb, dermal papilla, arrector pili, and sebaceous gland
500
This hair pigment provides natural color to dark brown and black hair. This pigment provides natural color ranging from red to yellow.
What is eumelanin and pheomelanin
500
Abnormal hair loss is __________ This topical medication is put on the scalp to help stimulate hair growth is __________
What is alopecia and minoxidil
500
The technical term for an acute localized bacterial infection of the hair follicle that produces constant pain.
What is furuncle
500
Hair stream: hair flowing in the same direction, two different directions or a natural part Whorl: hair that forms a circular pattern Cowlick: tuft of hair that stands straight up.
What are hair growth patterns
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