phases of hair growth
What are the two parts of a strand of human hair?
what are the root and shaft?
what percent is the hair made of protein?
90%
Which of the following is a reason cosmetologists should understand hair and scalp properties?
Identifying hair growth cycles and the differences between common and uncommon hair loss will help when recommending hair loss treatments to the client.
hair´s pith or core.
What is the medulla?
what is the most common hair color?
What is black hair?
Which layer of the hair shaft provides strength, elasticity, and color?
What is the cortex?
Which component of hair is defined as the thickness or diameter of an individual hair strand?
What is texture?
Which statement best describes what may have happened to cause a client’s hair to grow in a whorl pattern?
The strands of hair in the whorl are leaving the follicles at an angle different from the surrounding hairs.
hair cuticle
What is the outermost layer of hair?
What is the best way to prevent heat damage?
heat protectant
phase of the hair growth cycle in which the hair can shed
What is telogen phase?
If a cosmetologist holds a strand of hair with one hand while sliding the other hand’s thumb and forefinger from the end of the strand to the client’s scalp, what component of the hair is being analyzed?
What is porosity
Which of the following is a situation in which a cosmetologist would allow the hair to cool before styling?
when hydrogen side bonds have been broken by the heat from a curling iron
Which portion of the hair root structure supplies nutrients so that the hair can grow?
What is the dermal papilla?
STRESS MAKES YOUR HAIR GREY (True or myth)
myth
Each of the following is a layer of the hair shaft structure EXCEPT ______.
What is hair fiber?
overactive sebaceous glands
What causes oily hair and scalp?
Which of the following best describes a procedure a cosmetologist could use to determine how quickly hair will process during chemical services?
Feel a strand of hair to determine the hair´s texture
A long chain of amino acids linked by peptide bonds is called a _____ chain.
What is a polypeptide?
The hair, skin, nails, and glands are part of the _____ system.
integumentary
three growth cycles of human hair
What are anagen,catagen,and telogen
The three different types of side bonds that link chains of amino acids together are _____.
What are hydrogen, salt, and disulfide?
Which of the following conclusions can a cosmetologist make if a client expresses concern about not being able to grow the hair beyond shoulder length?
The anagen phase of the client’s hair growth is shorter than the anagen phase in other people’s hair growth, so the client’s hair will not grow any longer.
long pigmented hair on the scalp and body
What is terminal?
When did it become popular to color hair?
1950