Cosmetic

1252) Which of the following statements regarding hair patho-physiology is FALSE?

A. The hair cycle has three phases:  anagen, catagen and  telogen
B. Approximately 5% of the hair follicles are in the catagen phase
C. Scalp hair grows approximately 1 mm every 3 days. 
C. Most of the hair loss conditions are due to the hereditary male pattern baldness
D. The follicular unit transplantation is the gold standard in surgical hair transplantation









REFERENCES & ANSWER




1252) B     Approximately 5% of the hair follicles are in the catagen phase

Ende K. H., Kabaker S.S.: Hair Restoration: Medical and Surgical Techniques, chapter 26 in Cummings Otolaryngology-Head and Neck Surgery, Fifth Edition, Volume one, 2010, pp. 371-389