Chemical Composition
What are the COHNS elements?
Autoimmune disorder that causes the affected hair follicles to be mistakenly attacked by a person's own immune system; usually begins with one or more small, round, smooth bald patches on the scalp?
What is alopecia areata?
The tube-like depression or pocket in the skin or scalp that contains the hair root.
What is the hair follicle?
Technical term for gray hair; results from the loss of the hair's natural melanin pigment.
What is canities?
Acute, localized bacterial infection of the hair follicle that produces constant pain.
What is a furuncle?
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.
What are amino acids?
Total loss of scalp hair.
What is alopecia totalis?
Lowest part of a hair strand; the thickened, club-shaped structure that forms the lower part of the hair root.
What is the hair bulb?
Condition of abnormal growth of hair, characterized by the growth of terminal hair in areas of the body that normally grow only vellus hair.
What is hypertrichosis?
Infestation of the hair and scalp with head lice.
What is pediculosis capitis?
Chemical bond that joins amino acids to each other, end-to-end, to form a polypeptide chain.
What is a peptide bond?
Temporary hair loss experienced towards the end and after the pregnancy.
What is postpartum alopecia?
A small, cone-shaped elevation located at the base of the follicle that fits into the hair bulb.
What is the dermal papilla?
Technical term for split ends.
What is trichoptilosis?
A contagious condition caused by fungal infection and not a parasite; characterized by itching, scales, and sometimes painful lesions.
What is tinea?
A long chain of amino acids linked by peptide bonds.
What is a polypeptide chain?
Complete loss of body hair.
The small, involuntary muscle in the base of the hair follicle.
What is the arrestor pili muscle?
Characterized by brittleness and the formation of nodular swellings along the hair shaft.
What is trichorrhexis nodosa?
Inflammation of the subcutaneous tissue caused by staphylococci.
What is a carbuncle?
Long, coiled complex polypeptides made of amino acids.
What are proteins?
What is androgenic alopecia?
A fatty or oily substance secreted by the sebaceous glands that lubricates the skin.
What is sebum?
Technical term for beaded hair.
What is monilethrix?
Fungal infection characterized by dry, sulfur-yellow, cuplike crusts on the scalp called scutula.
What is tines favosa?