Good Hair day
What is the fluid secreted by the sebaceous glands?
Sebum
What causes Goosebumps?
arrector pili muscle
Where is the arrector pili muscle?
base of the hair follicle
T or F The hair bulb is the highest part of the hair strand?
False
A small cone-shaped elevation at the base of the hair follicle that fits into the hair bulb is called?
the dermal papilla
a tube-like depression pocket in the skin or scalp that contains the hair root is called?
hair follicle
The scientific study of Hair and it's diseases and care is called?
trichology
What are the five main elements in hair called?
COHNS
As newly formed cells mature, they fill up with a fibrous protein called?
Keratin
The maturing process of the hair is called?
Keratinization
A polypeptide chain the is cross linked like rungs on a ladder by three different types of ?
side bonds
A weak physical cross link side bond that is easily broken by heat or water is?
hydrogen bond
A weak physical cross link side bond that is easily broken by strong acidic or alkaline solutions?
salt bond
What kind of bond is a disulfide bond?
A strong, chemical
What kind of hair is eumelanin found in?
Dark Brown to Black hair
Refers to the shape and structure of the hair strand?
wave pattern
What kind of hair is pheomelanin found in?
blonde to red
Long, coarse, pigmented hair found on the face, arms, legs is?
terminal hair
Also known as Lanugo hair, short, fine and unpigmented hair and downy hair found on the body is called?
vellus hair
Which is the growth phase where new hair is produced?
anagen
Which phase is the resting phase where hair rests until its shed?
telogen
Where is the arrector pili muscle?
in the base of the hair follicle
The cuticle of the hair is transparent and consists of?
overlapping scale like layers
Hair is made up of 90% of?
Keratin aka Protein
The complete loss of body hair is called?
alopecia universalis