WorksheetsHair Structure
Total questions: 50
Worksheet time: 26mins
The tough clear outside layer is the
cuticle
cortex
medulla
polymer
Name the outer layer of the hair
Cortex
Medulla
Cuticle
Root Sheath
Medulla
Outside covering of hair
Deepest layer of hair containing large cells and air spaces
Layer of flattened cells located deep to the cuticle but superficial to the medulla
Muscle attached to the hair follicle.
Cortex
Outside covering of hair
Deepest layer of hair containing large cells and air spaces
The middle layer which provides the hair with its strength
Muscle attached to the hair follicle.
A
Cuticle
Hair Follicle
Cortex
Medulla
D
Cuticle
medulla
Hair Bulb
Cortex
B
Cuticle
Hair Follicle
medulla
Cortex
C
Cuticle
Medulla
Hair Bulb
Cortex
Which layer of the hair shaft creates the shine and the smooth, silky feel of healthy hair?
medulla
arrector pili
cuticle
cortex
The cortex determines strength and elasticity
true
false
What is the purpose of the cuticle scale
To protect the cortex
To add strength
To create the hairs natural colour pigment
To protect the medulla
The _____ supplies nutrients through blood vessels and is located at the bottom of the follicle.
hair bulb
dermal papilla
hair shaft
medulla
The tiny, involuntary muscle fiber in the skin inserted in the base of the hair follicle is the:
dermal pailla
angled bulb
inner follicle
arrector pili
The thickened, club-like structure that forms the lower part of the hair root is the:
arrector pili
hair bulb
cuticle layer
dermal papilla
The resting phase or final phase of the hair cycle that lasts until the fully grown hair is shed is the:
transition phase
anagen phase
telogen phase
catagen phase
The major elements that make up human hair are carbon, oxygen, hydrogen, nitrogen, and sulfur, often referred to as the:
keratins
dermal foundation
COHNS elements
amino acids
The units of structure that build protein and are joined together end to end like pop beads are:
lymph glands
primary acids
oxygenated cells
amino acids
The hair root is that portion of the hair contained within the:
hair cuticle
hair follicle
sweat pore
hair cortex
At the bottom of the hair follicle is found a small cone-shaped elevation called the hair:
papilla
cuticle
medulla
cortex
Hair receives its nourishment from the dermal papilla which contains:
blood vessels
muscles
glands
fatty tissue
The hair cuticle is the:
center layer
outer layer
second layer
marrow
The hair cortex is the:
outer layer
center layer
inner (second) layer
marrow
The scientific study of hair, its diseases, and care is called _________________.
dermatology
trichology
biology
cosmetology
The two parts of a mature strand of human hair are the __________________.
dermis and epidermis
hair shaft and haie follicle
hair root and hair shaft
hair root and hair follicle
Hair follicles are not found on the ___________________.
forehead area
backs of the hands
soles of the feet
back of neck
What type of hair is short, fine, unpigmented, and downy?
Vellus hair
Terminal hair
Androgenic hair
Feathered hair
The hair root is located ________
in the follicle
above the skin
below the skin
in the cortex
The hair shaft is located _______
Above the skin surface
Below the cortex
In the hair root
Under the skin
All ___________ processes take place in the cortex.
chemical
density
styling
integumentary
Protein Keratin and melanin pigment is found in the ______
medulla
eumelanin
cortex
pheomelanin
The salt bonds are broken by ____________
pH change
chemicals
water
surfactants
Hydrogen bonds are broken by _______ and __________
heat, perms
heat and water
water, chemical relaxers
styling, heat
Disulfide bonds are broken by ______________
strong alkaline solutions
acidic solutions
strong shampoo
perms and relaxers
Peptide bonds link together and make a __________ shape called a __________
spiral, helix
oval, helix
pop bead, helix
peptide chain, helix
The Chemical bond that joins amino acids to each other is called a _________.
peptide bond
COHNS bond
cystine bond
polypeptide bond
As newly formed cells mature, they fill up with a fibrous ______ then move upward, lose their nucleus, and die. This process is called keratinization.
tissue
sebum
protein
melanin
A long chain of peptide bonds are called:
Melanin
Keratinization
Polypeptides
Amino acid chains
Which bond of the cortex is broken by acidic and alkaline products
Hydrogen
Peptide
Salt
Ionic
Starting with the weakest, place the bonds in order of strength
Salt, Hydrogen, Peptide
Hydrogen, Salt, Disulfide
Disulfide, Salt, Hydrogen
Salt, Disulfide, Hydrogen
the anagen phase generally lasts from three to five:
days
weeks
months
years
Scalp hair grows _______ on women than on men.
thicker
thinner
slower
faster
An oily substance secreted from the sebaceous glands is:
sweat
lymph
catagen
sebum
The process whereby living cells mature and begin their journey up the hair shaft is:
anagen
catagen
keratinization
osmosis
