Hair

Hair is a protein filament that grows from follicles found in the dermis. Hair is one of the defining characteristics of mammals. The human body, apart from areas of glabrous skin, is covered in follicles which produce thick terminal and fine vellus hair. Most common interest in hair is focused on hair growth, hair types, and hair care, but hair is also an important biomaterial primarily composed of protein, notably alpha-keratin.

Hair
Cross section of a hair strand
Scanning electron microscopy image of Merino wool (top) and human hair (bottom) showing keratin scales
Details
SystemIntegumentary system
Identifiers
Latincapillum
MeSHD006197
TA98A16.0.00.014
TA27053
THH3.12.00.3.02001
FMA53667
Anatomical terminology

Attitudes towards different forms of hair, such as hairstyles and hair removal, vary widely across different cultures and historical periods, but it is often used to indicate a person's personal beliefs or social position, such as their age, sex, or religion.[1]