Hair Study
Parts of the Hair
Disorders
Hair Study
Bonus
100
Portion of the hair we see that extends above the skin surface 

Hair Shaft 

100

Contains the blood and nerve supply, that provides the nutrients needed for the hair growth

Dermal 

100

Complete Body hair loss 

Alopecia Universalis 

100

Natural haircolor is the result of the melanin pigment found in the 

Cortex 

100

Excessive Itching is a characteristic of 

Scabies 

200
Amino Acids are joined together end to end by chemical bonds known as _______ and _______ 

Peptide Bonds or End Bonds 

200

Is a weak, physical, cross link side bond that is easily broken by water and heat 

Hydrogen Bond 

200

hair loss that occurs with genetics, age, and hormonal changes 

Androgenic Alopecia 

200

What joins together two polypeptide bonds? 

Cystine 

200

Transition period between the growth and resting phases of the hair strand 

Catagen Phase 

300
If broken by hydroxide relaxers, what bond would be permanently broken and cannot be re-formed 

Disulfide Bond 

300

This layer is the hair primary defense against damage and protects the inner structure of the hair, responsible for silkiness and shine 

Cuticle 

300

Condition known for abnormal hair growth 

Hypertrichosis 

300

_______ hair is caused by the absence of melanin and also known as ________ (technical term) 

Gray or Canites 

300

Technical term for knotted hair

Characteristics, brittleness, swelling  

Trichorrhexis Nodosa 

400

What makes the hair more resistant? 

More Disulfide Bonds 

400

This layer of the hair may be absent in very fine and naturally blond hair

Medulla 

400

Is the infestation of the hair and scalp with head lice  

Pediculosis 

400

______ is composed of 90% ______. _______ is made of chemical units called ______ ______. _____ ______ ae made of _______  . 

Human Hair, Protein, Amino Acids, Amino Acids, ELEMENTS  


400
Eyebrows and Eyelashes are replaced every ___ to ___ 

4-5 months 

500
True or False 

Shaving, Clipping, and cutting the hair on the head makes it grow back faster, darker, and coarser 

False it's a Myth 

500

An oral medication for men, sold under the brand Propecia, and is for use only by men 

Finasteride 

500

Referred to as Razor bumps, is a chronic inflammatory condition that resembles folliculitis 

Pseudofolliculitis Barbae 

500

Boil, in which an acute bacterial infection of a hair follicle, producing constant pain 

Furuncle 

500

Hair Analyisis observation should include what 4 things 

Hair Texture, Hair Density, Hair Porosity, Hair Elasticity