表皮
anatomical
anatomy
bald
balding
baldness
basis
bulb
care
cell
condition
cortex
cross section
cuticle
cycle
dermis
drawing
follicle
genetic
grow
growth
hair
head
health
hormone
human
illustration
layer
loss
medical
medulla
new
organ
pattern
problem
root
scalp
science
scientific
sensory
shaft
shrinking
skin
small
stages
thinning
tissue