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?
vellus hair
100
What is technical term for dandruff; characterized by excessive production and accumulation of skin cells?
pityriasis
100
What is the number of individual hair strands on 1 square inch (2.5 square centimeters) of scalp?
hair density
100
What is lowest part of a hair strand; the thickened, club-shaped structure that forms the lower part of the hair root?
hair bulb
100
What is lowest part of a hair strand; the thickened, club-shaped structure that forms the lower part of the hair root?
hair bulb
200
What is (tinea favus) fungal infection characterized by dry, sulfur-yellow, cup-like crusts on the scalp called scutula?
tinea favosa
200
What is temporary hair loss experienced at the conclusion of a pregnancy?
postpartum alopecia
200
What is bonds that cross-link the polypeptide chains together and are responsible for the extreme strength and elasticity of human hair?
side bonds
200
What is abnormal hair loss?
alopecia
200
What is tuff of hair that stands straight up?
cowlick
300
What is inflammation of the subcutaneous tissue caused by staphylococci; similar to a furuncle but larger?
carbuncle
300
What is hair flowing in the same direction, resulting from follicles sloping in the same direction?
hair stream
300
What is a long chain of amino acids liked by peptide bonds?
polypeptide chain
300
What is the shape of the hair strands; described as straight, wavy, curly, and extremely curly?
wave pattern
300
What is ability of the hair to stretch and return to its original length without breaking?
hair elasticity
400
Technical term for gray hair; loss of hair's nature melanin pigment?
canities
400
What is naturally resistant to being penetrated by moisture?
hydrophobic
400
What is infestation of the hair and scalp with head lice?
pediculosis capitis
400
What is middle layer of the hair; a fibrous protein core formed by elongated cells containing melanin pigment?
cortex
400
What is scientific study of hair and its diseases and care?
trichology
500
What is total loss of scalp hair?
alopecia totalis
500
What is (end bond) chemical bond that joins amino acids to each other, end to end, to form a polypeptide chain?
peptide bond
500
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?
pityriasis steatoides
500
What is a long chain of amino acids liked by peptide bonds?
polypeptide chain
500
What is dry, sulfur-yellow, cup-like crusts on the scalp in tinea favosa or tinea favus?