Hair that forms in a circular pattern on the crown of the head
whorl
The technical term for split ends
trichoptilosis
Fungal infection characterized by dry, sulfur-yellow, cuplike crusts on the scalp called scutula, also known as tinea favus
tinea favosa
Long coiled complex polypeptides made of amino acids
proteins
Technical term for knotted hair
trichorrhexis nodosa
The shape of the hair strands; described as straight, wavy, curly, and extremely curl
wave pattern
Scientific study of hair and its diseases and care
tricology
Technical term for ringworm-contagious condition caused by fungal infection and not a parasite
tinea
Long coarse, pigmented hair found on the scalp, legs, arms, and bodies of males and females
terminal phase
A fatty or oily substance by the sebaceous glands that lubricates the skin
sebum
Dry, sulfur-yellow, cuplike crusts on the scalp in tinea favosa or tinea favus
scutula
Also known as lanugo hair, fine, unpigmented, and downy hair that appears on the body
vellus hair
The oil gland in the skin that are connected to the hair follicles
sebaceous gland
A weak physical, cross-link side bond between adjacent polypeptide chains
salt bond
Variety of canities characterized by altering bands of gray and pigmented hair throughout the length of the hair strand.
ringed hair
Temporary hair loss experienced towards the end and after the pregancy
postpartum alopecia
A long chain of amino acids linked by peptide bonds
polypeptide chain
Ability of the hair to absorb moisture
hair porosity
Abnormal hair loss
alopecia
The tubelike depression or pocket in the skin or scalp that contains the hair root
hair follicle
Ability of hair to stretch and return to its original length without breaking
hair elasticity
Total loss of scalp hair
alopecia totalis
Complete loss of body hair
alopecia universalis
Autoimmune disorder that causes the affected hair follicle to be mistakenly attacked by a person's own immune system
alopecia areata
Also known as growth stage
anagen phase