Hair
January 1983
in “
Elsevier eBooks
”
TLDR Hair grows from living roots, is made of dead keratin, and goes through growth, rest, and shedding stages.
The chapter described the structure and growth cycle of hair, noting that individual hairs have living roots in the scalp and undergo various stages of growth, rest, and shedding. The hair shaft, which is the visible part, is dead and composed of keratin, a strong and flexible protein. Hair is elastic, porous, and capable of absorbing moisture, with uncut hair having a pointed end.
