TY  - CHAP
M1  - Book, Section
TI  - Hair Disorders
A1  - Hordinsky, Maria K.
A2  - Soutor, Carol
A2  - Hordinsky, Maria K.
PY  - 2022
T2  - Clinical Dermatology: Diagnosis and Management of Common Disorders, 2e
AB  - The  hair  follicle  is  a  complex  structure  which  produces  a  hair  fiber  consisting  of  a  cortex,  medulla  and  cuticle  (Figures  30-1,  30-2).  Hair  follicles  demonstrate  the  unusual  ability  to  completely  regenerate  themselves.  Hair  grows,  falls  out,  and  then  regrows.  In  the  normal  human  scalp,  up  to  90%  of  hair  follicles  are  in  the  growth  phase  called  anagen,  1%  in  the  transition  phase  catagen  and  up  to  10%  in  telogen  or  the  loss  phase.  The  anagen  phase  lasts  approximately  3  years,  catagen  2–3  weeks  and  telogen  3  months.1  
SN  - 
PB  - McGraw-Hill Education
CY  - New York, NY
Y2  - 2024/04/16
UR  - accessmedicine.mhmedical.com/content.aspx?aid=1190939504
ER  -