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Hair & ScalpChapter9

Cosmetology Properties of Hair & Scalp Chapter 9

Small, cone-shaped area located at the base of the hair follicle. Dermal Papilla
Involuntary muscle in the base of the hair follicle. Arrector pili
Oil glands of the skin. Sebaceous
Oily Substance that lubricates the hair and skin. Sebum
The middle layer of the hair. Cortex
Acids that are linked together end to end. Amino
Chemical bond that links amino acids together. Peptide
A weak physical side bond easily broken. Hydrogen
Pigment in the cortex,gives natural color to hair. Melanin
Hair flowing in the same direction. Stream
Tuft of hair that stands straight up. Cowlick
short, fine, downy hair. Vellus
Long hair found on scalp, legs, arms, and bodies. Terminal
Resting phase of hair cycle. Telogen
Abnormal hair growth. Hypertrichosis
Technical term for split ends Trichoptilosis
Technical term for beaded hair. Monilethrix
The study of hair is known as. Trichology
Ability of the hair to absorb moisture. Porosity
Thickness or diameter of the individual hair strand. Texture
A weak, temporary side bond. Salt bond
Strong chemical side bonds that join sulfur atoms. Disulfide bond
Outermost layer of the hair. Cuticle
The number of individual hair strands found on 1 square inch of scalp. Hair density
Abnormal hair loss. Alopecia
Melanin that provides natural hair colors from red and ginger to yellow/blonde tones. Pheomelanin
Melanin that gives brown and black color to hair. Eumelanin
Growth phase in the hair cycle in which a new hair shaft is created. Anagen
The brief transition period between the growth and resting phases of the hair follicle. Catagen
Innermost layer of the hair, composed of round cells;often absent in fine hair. Medulla
Infestation of the hair and scalp with head lice. Pediculosis Capitis
Hair that forms a cicular pattern. whorl
Created by: 100001761340622