hair theory

Question 1

trichology

Answer 1

the study of hair

Question 2

adornment

Answer 2

protection from heat, cold, injury

Question 3

hair root

Answer 3

portion of hair inside of the hair follicle under the skins surface

Question 4

hair fiber

Answer 4

portion of the hair that extends above the skins surface

Question 5

papilla

Answer 5

filled with capillaries that supply nourishment

Question 6

germinal matrix cells

Answer 6

undergo cell division and produce cells that ultimately keratinize and form the three layers of hair

Question 7

medulla

Answer 7

central core of the hair shaft

Question 8

cortex

Answer 8

second layer with unique protein structures

Question 9

cuticle

Answer 9

the outer covering of the hair shaft

Question 10

sebaceous oil glads

Answer 10

produce sebum to prevent hair and skin from becoming too dry

Question 11

sebum oil

Answer 11

mixes with preparation to form the acid mantle

Question 12

acid mantle

Answer 12

protects cuticle hair fiber and maintains the natural pH of the hair and skin

Question 13

arrector pili muscle

Answer 13

caused hair to stand on end when a person is scared or cold

Question 14

proto

Answer 14

first

Question 15

micro

Answer 15

small

Question 16

macro

Answer 16

big

Question 17

anagen

Answer 17

active growing, 1000 days

Question 18

catagen

Answer 18

brief transitional, 100 days

Question 19

telogen

Answer 19

resting phase, 10 days