Anagen
The active growth phase of a hair follicle in the hair growth cycle. Discussion - The root from a pulled anagen hair is elongated and is usually fully pigmented (reference: Harding, H., and Rogers, G., Physiology and growth of human hair, In Robertson, J. (Ed.), Forensic Examination of Hair, London: Taylor and Francis, 1999, pp.177.)
Committee
Trace Materials
Date Added to Lexicon
Standard Source (Designation Number Title of Standard. Publisher, Place, Year.)
ANSI/ASTM E3316-22 Standard Guide for Forensic Examination of Hair by Microscopy. ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428, 2022.
Source link
Reprinted, with permission, from ASTM, copyright ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428. A copy of the complete standard may be purchased from ASTM International, https://www.astm.org