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62 Cards in this Set

  • Front
  • Back
ALOPECIA
Abnormal hair loss.
ALOPECIA AREATA
The sudden falling out of ahir in round patches or baldness in spots; may occur on the scalp and elsewhere on the body.
AMINO ACIDS
Units that are joined together end to end by peptide bonds to form the polypeptide chains that comprise proteins.
ANAGEN
Growth phase in the hair cycle in which a new hair shaft is created.
ANDROGENIC ALOPECIA
Hair loss characterized by miniaturization of terminal hair which is converted to vellus hair; in men, it is known ad male pattern baldness.
ARRECTOR PILI
Minute, involuntary muscle in the base of the hair follicle that causes "goose bumps".
CANITIES
Technical term for gray hair; results from the loss of the hair's natural melanin pigment.
CARBUNCLE
Inflammation of the subcutaneous tissue caused by staphylococci; similar to a furuncle but larger.
CATAGEN
The brief transition period between the growth and resting phases of a hair follicle.
COHNS elements
The five elements that make up human hair, skin, tissue and nails (CARBON, OXYGEN, HYDROGEN, NITROGEN and SULFUR).
CORTEX
Middle layer of the hair; a fibrous protein core formed by elongated cells containing melanin pigment.
COWLICK
Tuft of hair that stands straight up.
CUTICLE
Outermost layer of hair, consisting of a single, overlapping layer of transparent, scale-like cells.
DERMAL PAPILLA
Small, cone-shaped elevation located at the base of the hair follicle that fits into the hair bulb.
DISULFIDE BOND
Strong chemical side bonds that join the sulfur atoms of two neighboring cysteine amino acids to create cystine, which joins together two polypeptide strands like rungs on a ladder.
EUMELANIN
Melanin that gives brown and black color to hair.
FOLLICLE
Tube-like depression or pocket in the skin or scalp that contains the hair root.
FRAGILITAS CRINIUM
Technical term for brittle hair.
FURUNCLE
Boil; acute, localized bacterial infection of the hair follicle.
HAIR BULB
Lowest part of a hair strand; the thickened, club-shaped structure that forms the lower part of the hair root.
HAIR DENSITY
The number of individual hair strands found on 1 square inch of scalp.
HAIR ELASTICITY
Ability of the hair to stretch and return to its original length without breaking.
HAIR POROSITY
Ability of the hair to absorb moisture.
HAIR ROOT
The part of the hair contained within the follicle, below the surface of the scalp.
HAIR SHAFT
The portion of hair that projects beyond the skin.
HAIR STREAM
Hair flowing in the same direction, resulting from follicles sloping in the same direction.
HAIR TEXTURE
Thickness or diameter of the individual hair strands.
HELIX
Spiral shape created by polypeptide chains that intertwine around each other.
HYDROGEN BOND
Weak physical side bond that is easily broken by water or heat.
HYPERTRICHOSIS (HIRSUTIES)
Condition of abnormal growth of hair, characterized by the growth of terminal hair in areas of the body that normally grow only vellus hair.
INTEGUMENT
Largest and fastest growing organ of the body; composed of the hair, skin and nails.
KERATINIZATION
Process by which newly formed cells in the hair bulb mature, fill with keratin, move upward, lose their nucleus, and die.
MALASSEZIA
Naturally occurring fungus that is present on all human skin, and is responsible for dandruff.
MEDULLA
Innermost layer of the hair, composed of round cells, often absent in fine hair.
MELANIN
Tiny grains of pigment in the cortex that give natural color to the hair.
MONILETHRIX
Technical term for beaded hair.
PEDICULOSIS CAPITIS
Infestation of the hair and scalp with head lice.
PEPTIDE BOND OR END BOND
Chemical bond that joins amino acids to each other, end to end, to form a polypeptide chain.
PHEOMELANIN
Melanin that provides natural hair colors from red and ginger to yellow/blond tones.
PITYRIASIS
Dandruff; an inflammation of the skin characterized by the formation and flaking of fine, thin scales.
PITYRIASIS CAPITIS SIMPLEX
Technical term for classic dandruff; characterized by scalp irritation, large flakes.
PITYRIASIS STEATOIDES
Scalp inflammation marked by fatty (greasy or waxy) types of dandruff.
POLYPEPTIDE CHAIN
Long chain of amino acids linked by peptide bonds.
POSTPARTUM ALOPECIA
Temporary hair loss experienced at the conclusion of a pregnancy.
RINGED HAIR
Variety of canities characterized by alternating gray and pigmented hair throughout the length of the hair strand.
SALT BOND
A weak, temporary side bond between adjacent polypeptide chains.
SCABIES
Highly contagious disease caused by mites that burrow under the skin.
SCUTULA
Dry, sulfur-yellow, cup-like crusts on the scalp in tinea favosa or favus
SEBACEOUS GLANDS
Oil glands of the skin connected to hair follicles.
SEBORRHEIC DERMATITIS
Medical term for pityriasis steatoides accompanied by redness and inflammation.
SEBUM
Oily secretion of the sebaceous glands, which lubricates the hair and skin.
TELOGEN
Resting phase; the final phase int eh hair cycle that lasts until the fully grown hair is shed.
TERMINAL HAIR
Long hair found on the scalp, as well as on legs, arms, and body of both males and females.
TINEA
Medical term for ringworm, a contagious condition causd by fungal infection.
TINEA CAPITIS
Fungal infection of the scalp characterized by red papules, or spots at the opening of the hair follicles.
TINEA FAVOSA (TINEA FAVUS)
Fungal infection characterized by dry, sulfur-yellow, cup-like crusts on the scalp, called scutula.
TRICHOLOGY
Science dealing with the study of hair, its diseases, and care.
TRICHOPTILOSIS
Technical term for split ends.
TRICHORRHEXIS NODOSA
Knotted hair characterized by brittleness and the formation of nodular swellings along the hair shaft.
VELLUS OR LANUGO
Short, fine, unpigmented downy hair that appears on the body, with the exception of the palms of the hands and soles of the feet.
WAVE PATTERN
Amount of "movement" in the hair strand; described as straight, wavy curly, and extremely curly.
WHORL
Hair that forms in a circular pattern, as on the crown.