scientific concepts
Hair Care and Services
Skin care and services
Nail care and services
Random!
100
What is the branch of science that applies to substances that contain carbon called? Hint: _____ chemistry
Organic
100
Which term refers to a layer that protects the hair from penetration and prevent damage to hair fibers?
Hair cuticle
100
The largest organ of the human body is the
Skin
100
The nail plate is formed by the
Matrix cell
100
What unit measures the strength of an electric current?
Ampere
200
Chemically combining two or more atoms produces a
Molecule
200
What structures contain the blood and nerve supply that provide the nutrients needed for hair growth?
Dermal papillae
200
The deepest layer of the epidermis, the basal cell layer, is also known as the
Stratum Germinativum
200
The part of the nail plate that extends over the tip of the finger or toe is called the
Free edge
200
The two major categories of hair removal are:
Temporary and permanent
300
The dense active structure at the center of the cell is the
Nucleus
300
What styling technique is used to keep curly hair smooth and straight while retaining its shape?
Wrapping
300
The deeper layer of the dermis that supplies the skin with oxygen and nutrients is the
Reticular layer
300
Which part of the nail unit is richly supplied with blood vessels and with nerves?
Nail bed
300
What is the first step of double processing?
Pre-lightening
400
Which action is best defined as removing all visible dirt and debris from tools, implements and equipment by washing with with soap and water ?
Cleaning
400
Low porosity
When the cuticle is tight and the hair is resistant, it is difficult for moisture or chemicals to penetrate. What term describes this condition?
400
What helps protect sensitive cells from the UV rays?
Melanin
400
The dead colorless tissue attached to the natural nail plate is the
cuticle
400
The principle of hair design that holds all the elements of design together is
harmony
500
What part of the hair is located below the surface of the epidermis?
Hair root
500
Non-oxidative hair color is classified as temporary and
Semipermanent
500
A non-contagious skin disease characterized by red patches covered with silver white scales found on the scalp, elbows, knees, chest and lower back is
Psoriasis
500
The skin that overlaps the side of the nail is called the
Sidewall
500
The part of the hair shaft between the scalp and the hair that has been previously colored is known as
New growth
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