NACC EXAM UPDATED QUESTIONS
AND CORRECT ANSWERS.
Largest organ of the body - ANS skin
The barrier function of the skin includes - ANS acid mantle
hydro - ANS water
two layers or sections of the skin - ANS epidermis and dermis
Approximately what percentage of water is in healthy skin - ANS 50-70%
Keratin and intercellular lipids are formed in the - ANS stratum granulosum
Which layer of the skin produces melanin - ANS stratum germinativum
The junction where the dermis connects to the epidermis is called: - ANS epidermal-dermal
junction
_____ aid in the production of collagen and elastin. - ANS Fibroblasts
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,Subcutis or _____ tissue is found below the reticular layer. - ANS apidose
Identify the slender outgrowth of the scalp. - ANS hair
Which fibers stimulate the arrector pili muscles? - ANS motor nerves
cells in the basal layer that produce pigment granules - ANS melanocytes
The _____ glands excrete sweat. - ANS sudoriferous
What do cells need in order to survive? - ANS nourishment, to proliferate, and protection
phospholipids, glycolipids, cholesterol, trigylcerides, squalene, and waxes - ANS AKA lipids
_____ of cells are replaced by the body on a daily basis - ANS Billions
Atoms or molecules with unpaired electrons are called - ANS free radicals
True or false: Natural antioxidants are found in the skin. - ANS true
Which of the following causes premature aging of the skin? - ANS smoking, tanning, drugs,
alchol
Identify the greatest aging effect on the skin: - ANS UV rays
_____ are called the burning rays. - ANS UVB
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, In order to block UVA and UVB rays, sunscreens must be: - ANS broad spectrum
Estrogen protects the skin by: - ANS being anti-inflammatory, repairing skin tissue, and
having antioxidant properties
An esthetician's primary role is to _____ and nourish the skin. - ANS preserve, protect
What is the average square footage and weight of an adult's skin? - ANS 22 sq ft; 8-10 lbs
What does TEWL stand for? - ANS transepidermal water loss
The most amazing feature of the skin is its ability to: - ANS heal itself
Which glands excrete perspiration and detoxify the body? - ANS sudoriferous
Skin absorbs______ and expels_____ - ANS oxygen, carbon dioxide
Appendages include: - ANS hair, nails, sweat and oil glands
Primary functions of the skin include: - ANS protection and sensation, heat regulation and
secretion, and absorption and excretion
What does the skin protect against? - ANS outside elements and microorganisms
Lipids - ANS protect cells from dehydration
Mitosis occurs in this layer - ANS stratum germinativum
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AND CORRECT ANSWERS.
Largest organ of the body - ANS skin
The barrier function of the skin includes - ANS acid mantle
hydro - ANS water
two layers or sections of the skin - ANS epidermis and dermis
Approximately what percentage of water is in healthy skin - ANS 50-70%
Keratin and intercellular lipids are formed in the - ANS stratum granulosum
Which layer of the skin produces melanin - ANS stratum germinativum
The junction where the dermis connects to the epidermis is called: - ANS epidermal-dermal
junction
_____ aid in the production of collagen and elastin. - ANS Fibroblasts
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
,Subcutis or _____ tissue is found below the reticular layer. - ANS apidose
Identify the slender outgrowth of the scalp. - ANS hair
Which fibers stimulate the arrector pili muscles? - ANS motor nerves
cells in the basal layer that produce pigment granules - ANS melanocytes
The _____ glands excrete sweat. - ANS sudoriferous
What do cells need in order to survive? - ANS nourishment, to proliferate, and protection
phospholipids, glycolipids, cholesterol, trigylcerides, squalene, and waxes - ANS AKA lipids
_____ of cells are replaced by the body on a daily basis - ANS Billions
Atoms or molecules with unpaired electrons are called - ANS free radicals
True or false: Natural antioxidants are found in the skin. - ANS true
Which of the following causes premature aging of the skin? - ANS smoking, tanning, drugs,
alchol
Identify the greatest aging effect on the skin: - ANS UV rays
_____ are called the burning rays. - ANS UVB
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, In order to block UVA and UVB rays, sunscreens must be: - ANS broad spectrum
Estrogen protects the skin by: - ANS being anti-inflammatory, repairing skin tissue, and
having antioxidant properties
An esthetician's primary role is to _____ and nourish the skin. - ANS preserve, protect
What is the average square footage and weight of an adult's skin? - ANS 22 sq ft; 8-10 lbs
What does TEWL stand for? - ANS transepidermal water loss
The most amazing feature of the skin is its ability to: - ANS heal itself
Which glands excrete perspiration and detoxify the body? - ANS sudoriferous
Skin absorbs______ and expels_____ - ANS oxygen, carbon dioxide
Appendages include: - ANS hair, nails, sweat and oil glands
Primary functions of the skin include: - ANS protection and sensation, heat regulation and
secretion, and absorption and excretion
What does the skin protect against? - ANS outside elements and microorganisms
Lipids - ANS protect cells from dehydration
Mitosis occurs in this layer - ANS stratum germinativum
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
