Answers |Actual Complete Exam |Already Graded A+
the hair, skin, nails, and glands are known collectively as the ✔Correct Answer-integument
the five main structures of the hair root include all of the following except ✔Correct Answer-
epidermis
the pocket or tube-like depression in the scalp or skin that contains the hair root is the
✔Correct Answer-follicle
the thickened, club-like structure that forms the lower part of the hair root is the ✔Correct
Answer-hair bulb
a small cone shaped area located at the base of the hair follicle that fits into the hair bulb is the
✔Correct Answer-dermal papilla
the substance secreted by the sebaceous glands is called ✔Correct Answer-sebum
the tiny, involuntary muscle fiber in the skin inserted in the base of the hair follicle is the
✔Correct Answer-arrector pili
which layer of the hair shaft creates the shine and the smooth, silky feel of healthy hair
✔Correct Answer-cuticle
a lengthwise section of hair shows that cuticle scales overlap and each individual cuticle scale is
attached to the ✔Correct Answer-cortex
the fibrous protein core formed by elongated cells that contains melanin pigment is the
✔Correct Answer-cortex
the medulla, the innermost layer of the hair, is composed of cells that are ✔Correct Answer-
round
hair is composed of protein that grows from cells originating within the ✔Correct Answer-hair
follicle
the hair shaft that emerges from the scalp is a nonliving fiber composed of ✔Correct Answer-
keratinized protein
the major elements that make up human hair are carbon, oxygen, hydrogen, nitrogen, and
sulfur, often referred to as the ✔Correct Answer-COHNS elements
,the units of structure that build protein and are joined together end to end like pop beads are
✔Correct Answer-amino acids
a long chain of amino acids linked by peptide bonds is called a ✔Correct Answer-polypeptide
chain
3 different types of side bonds are ✔Correct Answer-hydrogen, salt, and disulfide
a physical side bond that is easily broken by water and heat is a ✔Correct Answer-hydrogen
bond
a weak, physical, cross-link side bond between adjacent polypeptide chains that is broken by
changes in pH is a ✔Correct Answer-salt bond
permanent waving and hair relaxers change the shape of hair by chemically altering the hair's
✔Correct Answer-disulfide bonds
hydroxide chemical relaxers break disulfide bonds and convert them to ✔Correct Answer-
lanthionine bonds
all natural hair color is the result of pigment located in the cortex called ✔Correct Answer-
melanin
the melanin that provides brown or black color to hair is ✔Correct Answer-eumelanin
terms used to describe the hair's wave pattern ✔Correct Answer-straight, curly, extremely
curly
vellus hair is short, fine, and downy hair also known as ✔Correct Answer-lanugo hair
three growth cycles of human hair ✔Correct Answer-anagen, catagen, telogen
the resting phase or final phase of the hair cycle that lasts until the fully grown hair is shed is
the ✔Correct Answer-telogen phase
the sudden falling out of hair in round patches or baldness in spots is ✔Correct Answer-
alopecia areata
technical term for gray hair ✔Correct Answer-canities
the condition of abnormal hair growth of terminal hair is referred to as ✔Correct Answer-
hypertrichosis
, trichoptilosis is the technical term for ✔Correct Answer-split ends
a condition that is characterized by brittleness and the formation of nodular swellings along the
hair shaft is ✔Correct Answer-trichorrhexis nodosa
the medical term used to describe dandruff is ✔Correct Answer-pityriasis
current research confirms that dandruff is the result of a fungus called ✔Correct Answer-
malassezia
a severe type of dandruff characterized by an accumulation of greasy or waxy scalp scales mixed
with sebum is ✔Correct Answer-pityriasis steatoides
tinea is characterized by itching scales and sometimes painful circular lesions and is caused by
✔Correct Answer-fungal organisms
scalp disorder characterized by dry, sulfur-yellow, cup-like crusts on the scalp ✔Correct
Answer-tinea favosa
a highly contagious skin disease caused by a parasite called a mite is ✔Correct Answer-scabies
an infestation of the hair and scalp with head lice is ✔Correct Answer-pediculosis capitis
an acute, localized bacterial infection of the hair follicle that produces constant pain is a
✔Correct Answer-furuncle
the thickness of diameter of the individual hair strand is referred to as hair ✔Correct Answer-
texture
hair that has the largest diameter and usually requires more processing is ✔Correct Answer-
coarse hair
the measurement that describes the number of individual hair strands on 1 square inch of the
scalp is ✔Correct Answer-density
the ability of the hair to absorb moisture is ✔Correct Answer-porosity
chemical services performed on hair with low porosity require a solution that is ✔Correct
Answer-more alkaline
the ability of hair to stretch to stretch and return to its original length without breaking is
referred to as hair ✔Correct Answer-elasticity