conditions
vellus hair
What is (lanugo hair) short, fine, unpigmented downy hair that appears on the body, with the exception of the palms of the hands and the soles of the feet?
pityriasis
What is technical term for dandruff; characterized by excessive production and accumulation of skin cells?
hair density
What is the number of individual hair strands on 1 square inch (2.5 square centimeters) of scalp?
hair bulb
What is lowest part of a hair strand; the thickened, club-shaped structure that forms the lower part of the hair root?
Human hair is approximately this percent protein.
What is 90?
tinea favosa
What is a fungal infection characterized by dry, sulfur-yellow, cup-like crusts on the scalp called scutula?
postpartum alopecia
What is temporary hair loss experienced at the conclusion of a pregnancy?
peptide bond
What is bonds that cross-link the polypeptide chains together and are responsible for the extreme strength and elasticity of human hair?
alopecia
What is abnormal hair loss?
The essential elements in the human hair are carbon, oxygen, hydrogen and these.
What are nitrogen and sulfur?
carbuncle
What is inflammation of the subcutaneous tissue caused by staphylococci; similar to a furuncle but larger?
hair stream
What is hair flowing in the same direction, resulting from follicles sloping in the same direction?
polypeptide chain
What is a long chain of amino acids liked by peptide bonds?
wave pattern
What is the shape of the hair strands; described as straight, wavy, curly, and extremely curly?
These are hydrogen, salt, and disulfide bonds.
What are the three types of side bonds?
canities
Technical term for gray hair; loss of hair's nature melanin pigment?
hydrophobic
What is naturally resistant to being penetrated by moisture?
pediculosis capitis
What is infestation of the hair and scalp with head lice?
cortex
What is middle layer of the hair; a fibrous protein core formed by elongated cells containing melanin pigment?
trichology
What is the scientific study of hair and its diseases and care?
alopecia totalis
What is total loss of scalp hair?
peptide bond
What is (end bond) chemical bond that joins amino acids to each other, end to end, to form a polypeptide chain?
pityriasis steatoides
What is severe case of dandruff characterized by an accumulation of greasy or waxy scales mixed with sebum, that stick to the scalp in crusts?
polypeptide chain
What is a long chain of amino acids liked by peptide bonds?
scatula
What is dry, sulfur-yellow, cup-like crusts on the scalp in tinea favosa or tinea favus?