表皮
artificial
biological
biology
blood vessels
connective tissue
cross section
demonstration
dermatologist
dermatology
dermis
education
educational
example
fat
glands
hair
hair follicles
health
human
learning
longitudinal section
medical
model
nerves
organs
physical
physiology
protective
research
school
science
skin
skin cells
skin disorder
skin doctor
skin function
skin model
skin problems
skin tissue
stratum corneum
study
subcutaneous
subcutaneous tissue
sweat
sweat glands
sweating
synthetic
teaching
tissue