Autoimmune disorder that causes the affected hair follicles to be mistakenly attacked by a person's own immune system.
Alopecia Areata
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Units that are joined together end-to-end like pop beads by strong, chemical peptide bonds (end bonds) to form the polypeptide chains that comprise proteins.
Amino Acids
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Hair loss characterized by miniaturization of terminal hair that is converted to vellus hair.
Androgenic Alopecia
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The small, involuntary muscle in the base of the hair follicle.
Arrector pili muscle
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Technical term for gray hair.
Canities
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Inflammation of the subcutaneous tissue caused by staphylococci.
Carbuncle
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A small, cone-shaped elevation located at the base of the hair follicle that fits into the hair bulb.
Dermal papilla
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Strong chemical side bonde that joins the sulfur atoms of two neighboring cystein amino acids to create one cysteine, which joins togehter two polypeptide strands like the rungs on a ladder.
Disulfide Bond
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Technical Term for brittle hair.
Fragilitas crinium
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Boil; acute, localized bacterial infection of the hair follicle that produces constant pain.
Furuncle
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The thickened, club-like structure that forms the lower part of the hair root.
Hair bulb
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The tube-like depression or pocket in the skin or scalp that contains the hair root.
Hair follicle
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The part of the hair located below the surface of the epidermis.
Hair root
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The portion of the hair that projects above the epidermis.
Hair shaft
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Thickness or diameter of the individual hair strand.
Hair texture
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Spiral shape of a coiled protein created by polypeptide chains that intertwine with each other.
