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lowest part of a hair strand, the thickened club shaped structure that forms the lower part of the hair root
a smooth muscle attached to hair follicles that causes "goose bumps" to appear on the skin when contracted
Middle layer of the hair, afibrous protein core formed by elongated cells containing melanin pigment
a person or organism lacking pigmentation, resulting in abnormally pale or white skin or lack of color
long hair found on the scalp as well as on legs, arms, and body of both males and females
resting phase , the final phase in the hair cycle that lasts until the fully grown hair is shed
an autoimmune disorder that attacks the hair follicles, causing well-defined bald areas on the scalp or elsewhere on the body
most common form of alopecia, a combination of heredity, hormones and age that causes progressive shrinking or miniaturization of certain scalp follicles, also called male pattern baldness
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