Michigan Esthetician State Board Theory
CORRECT ANSWERS 2025
What item should be used on tools and implements that have not come in contact
with blood or body fluids? - CORRECT-ANSWERSBroad-Spectrum Disinfectants
What machine is used to sterilize surgical instruments with high-pressure and high-
temperature vapors? - CORRECT-ANSWERSChemiclave
Instruments can be pre-cleaned using: - CORRECT-ANSWERSHigh-frequency energy
waves
What is the Occupational Safety and Health Administration (OSHA) responsible for? -
CORRECT-ANSWERSEnforces safety and health standards in the workplace
Which department is OSHA under? - CORRECT-ANSWERSDepartment of Labor
What do Material Safety Data Sheets (MSDS) provide information on? - CORRECT-
ANSWERSSpecific product ingredients, hazards, combustion levels, and storage
requirements
What is the Environmental Protection Agency (EPA) responsible for? - CORRECT-
ANSWERSApproving the efficacy of products and verifying effectiveness of products
against organisms listed on the labels
Which infection control equipment utilizes UV light to kill bacteria in a dry setting? -
CORRECT-ANSWERSUV Light Sterilizer
Can a UV light sterilizer kill all bacterial spores? - CORRECT-ANSWERSNo, it cannot
be relied upon to do that
Which infection control equipment uses pressure, heat, and/or pressurized steam? -
CORRECT-ANSWERSAutoclave
Which infection control equipment high-pressure, high-temperature water, alcohol,
and formaldehyde vapors? - CORRECT-ANSWERSChemiclave
,What are the five layer of the epidermis (top to bottom)? - CORRECT-ANSWERS1.
Stratum Corneum
2. Stratum Lucidum
3. Stratum Granulosum
4. Stratum Spinosum
5. Stratum Germinativum
[C.L.G(r).S.G: Clean Ladies G(r)eet Sailors Gorgeously]
What is another name for the dermis? - CORRECT-ANSWERSTrue skin
Which types of cells are found in the stratum corneum? - CORRECT-
ANSWERSKeratinocytes and squamous cells
What are keratinocytes tightly interconnected by on the skin's surface? - CORRECT-
ANSWERSDesmosomes
What is the purpose of a squamous cell in the stratum corneum? - CORRECT-
ANSWERSProtect lower layers of the epidermis and the rest of the skin
Which layer of the epidermis acts as a barrier to moisture loss and is water-
resistant? - CORRECT-ANSWERSStratum corneum
Which layers of the epidermis are composed of dead cells? - CORRECT-
ANSWERSStratum corneum, stratum lucidum, stratum granulosum
Which layer of the epidermis is transparent? - CORRECT-ANSWERSStratum lucidum
What creates densely packed, clear keratin in the stratum lucidum? - CORRECT-
ANSWERSKeratinocytes
Which layer of the epidermis is where keratinization begins (and where keratin is
produced)? - CORRECT-ANSWERSStratum granulosum
What is the protein substance that forms keratin? - CORRECT-ANSWERSKeratohyalin
, In which layer of the epidermis does protection begin? - CORRECT-
ANSWERSStratum granulosum
What makes the stratum spinosum the "spiny layer?" - CORRECT-
ANSWERSDesmosomes which provide strength and support between cells
Where do langerhan cells reside and protect the body from infection (alongside T-
cells)? - CORRECT-ANSWERSStratum spinosum
Which layer of the epidermis is called the "basal layer?" - CORRECT-
ANSWERSStratum germinativum as this is where basal cells go through mitosis
What is the purpose of the hemidesmosomes in the stratum germinativum? -
CORRECT-ANSWERSAttach epidermis to the dermis to form basement membrane
Where are Merkel cells found? - CORRECT-ANSWERSStratum germinativum (in thick
skin)
Where are melanocytes found? - CORRECT-ANSWERSStratum germinativum (in thin
skin)
What cells cover and protect the inside of the body? - CORRECT-ANSWERSEpithelial
What are the two layers that the dermis is divided into? - CORRECT-
ANSWERSPapillary Dermis and Reticular Dermis
Which immune cells reside in the stratum spinosum and provide the first line of
defense in identifying foreign substances? - CORRECT-ANSWERSLangerhans Cells
Secretion is one of the six functions of the skin. Does it refer to sebum or sweat
being secreted? - CORRECT-ANSWERSSebum which affects pH
Excretion is one of the six functions of the skin. Does it refer to sebum or sweat
being excreted? - CORRECT-ANSWERSNeither. Excretion refers to toxic waste and
materials excreted through SWEAT glands and pores (i.e. CO2)
CORRECT ANSWERS 2025
What item should be used on tools and implements that have not come in contact
with blood or body fluids? - CORRECT-ANSWERSBroad-Spectrum Disinfectants
What machine is used to sterilize surgical instruments with high-pressure and high-
temperature vapors? - CORRECT-ANSWERSChemiclave
Instruments can be pre-cleaned using: - CORRECT-ANSWERSHigh-frequency energy
waves
What is the Occupational Safety and Health Administration (OSHA) responsible for? -
CORRECT-ANSWERSEnforces safety and health standards in the workplace
Which department is OSHA under? - CORRECT-ANSWERSDepartment of Labor
What do Material Safety Data Sheets (MSDS) provide information on? - CORRECT-
ANSWERSSpecific product ingredients, hazards, combustion levels, and storage
requirements
What is the Environmental Protection Agency (EPA) responsible for? - CORRECT-
ANSWERSApproving the efficacy of products and verifying effectiveness of products
against organisms listed on the labels
Which infection control equipment utilizes UV light to kill bacteria in a dry setting? -
CORRECT-ANSWERSUV Light Sterilizer
Can a UV light sterilizer kill all bacterial spores? - CORRECT-ANSWERSNo, it cannot
be relied upon to do that
Which infection control equipment uses pressure, heat, and/or pressurized steam? -
CORRECT-ANSWERSAutoclave
Which infection control equipment high-pressure, high-temperature water, alcohol,
and formaldehyde vapors? - CORRECT-ANSWERSChemiclave
,What are the five layer of the epidermis (top to bottom)? - CORRECT-ANSWERS1.
Stratum Corneum
2. Stratum Lucidum
3. Stratum Granulosum
4. Stratum Spinosum
5. Stratum Germinativum
[C.L.G(r).S.G: Clean Ladies G(r)eet Sailors Gorgeously]
What is another name for the dermis? - CORRECT-ANSWERSTrue skin
Which types of cells are found in the stratum corneum? - CORRECT-
ANSWERSKeratinocytes and squamous cells
What are keratinocytes tightly interconnected by on the skin's surface? - CORRECT-
ANSWERSDesmosomes
What is the purpose of a squamous cell in the stratum corneum? - CORRECT-
ANSWERSProtect lower layers of the epidermis and the rest of the skin
Which layer of the epidermis acts as a barrier to moisture loss and is water-
resistant? - CORRECT-ANSWERSStratum corneum
Which layers of the epidermis are composed of dead cells? - CORRECT-
ANSWERSStratum corneum, stratum lucidum, stratum granulosum
Which layer of the epidermis is transparent? - CORRECT-ANSWERSStratum lucidum
What creates densely packed, clear keratin in the stratum lucidum? - CORRECT-
ANSWERSKeratinocytes
Which layer of the epidermis is where keratinization begins (and where keratin is
produced)? - CORRECT-ANSWERSStratum granulosum
What is the protein substance that forms keratin? - CORRECT-ANSWERSKeratohyalin
, In which layer of the epidermis does protection begin? - CORRECT-
ANSWERSStratum granulosum
What makes the stratum spinosum the "spiny layer?" - CORRECT-
ANSWERSDesmosomes which provide strength and support between cells
Where do langerhan cells reside and protect the body from infection (alongside T-
cells)? - CORRECT-ANSWERSStratum spinosum
Which layer of the epidermis is called the "basal layer?" - CORRECT-
ANSWERSStratum germinativum as this is where basal cells go through mitosis
What is the purpose of the hemidesmosomes in the stratum germinativum? -
CORRECT-ANSWERSAttach epidermis to the dermis to form basement membrane
Where are Merkel cells found? - CORRECT-ANSWERSStratum germinativum (in thick
skin)
Where are melanocytes found? - CORRECT-ANSWERSStratum germinativum (in thin
skin)
What cells cover and protect the inside of the body? - CORRECT-ANSWERSEpithelial
What are the two layers that the dermis is divided into? - CORRECT-
ANSWERSPapillary Dermis and Reticular Dermis
Which immune cells reside in the stratum spinosum and provide the first line of
defense in identifying foreign substances? - CORRECT-ANSWERSLangerhans Cells
Secretion is one of the six functions of the skin. Does it refer to sebum or sweat
being secreted? - CORRECT-ANSWERSSebum which affects pH
Excretion is one of the six functions of the skin. Does it refer to sebum or sweat
being excreted? - CORRECT-ANSWERSNeither. Excretion refers to toxic waste and
materials excreted through SWEAT glands and pores (i.e. CO2)
