The tube-like depression or pocket in the skin or scalp that contains the hair root.

A condition of abnormal growth of hair, characterized by the growth of terminal hair in areas of the body that normally grow only vellus hair.

Hair loss characterized by miniaturization of terminal hair that is converted to vellus hair.

Also know as lanugo hair; short fine unpigmented and downy hair that appears on the body, with the exception of the palms of the hands and soles of the feet.

Technical term for split ends.

Dry, sulfur-yellow, cuplike crusts on the scalp in tinea favosa.

Sever case of dandruff characterized by an accumulation of greasy or waxy scales mixed with sebum that stick to the scalp in crusts.

The thickened, club-like structure that forms the lower part of the hair root.

Inner most layer of the hair that is composed of round cells; often absent in fine and naturally blond hair.

Hair stream that forms in a circular pattern on the crown of the head.

Technical term for classic dandruff; characterized by scalp irritation, large flakes, and itchy scalp.

A fatty or oily substance secreted by the sebaceous glands that lubricates the skin.

Easily absorbs moisture (water-loving)