IBEC ELECTROLOGY STATE BOARD NEWEST COMPLETE 250
QUESTIONS AND CORRECT DETAILED ANSWERS
Question 1
Which layer of the skin is primarily responsible for generating new hair cells?
A) Epidermis
B) Dermis
C) Hypodermis
D) Stratum corneum
E) Subcutaneous tissue
Correct Answer: B) Dermis
Rationale: The hair follicle, which is responsible for hair growth, is
located within the dermis layer of the skin. Specifically, the dermal
papilla within the hair bulb contains cells that produce new hair.
Question 2
What is the primary function of the sebaceous glands in relation to hair?
A) To produce sweat for cooling.
B) To provide structural support for the hair shaft.
C) To lubricate the skin and hair with sebum.
D) To regulate hair growth cycles.
E) To provide sensory reception.
Correct Answer: C) To lubricate the skin and hair with sebum
Rationale: Sebaceous glands secrete sebum, an oily substance that
lubricates the hair shaft and skin, helping to keep them moisturized
and protected.
Question 3
The growth phase of hair, during which active hair production occurs, is
known as the:
A) Catagen phase
B) Telogen phase
C) Anagen phase
D) Exogen phase
,E) Latent phase
Correct Answer: C) Anagen phase
Rationale: The anagen phase is the active growth stage of hair,
characterized by rapid cell division in the hair matrix. This is the
ideal stage for electrology treatment.
Question 4
Which type of current is used in the galvanic modality of electrology?
A) High-frequency alternating current
B) High-frequency direct current
C) Low-frequency alternating current
D) Low-frequency direct current
E) Pulsed electromagnetic field
Correct Answer: D) Low-frequency direct current
Rationale: The galvanic modality uses low-frequency direct current
(DC) to create a chemical reaction (electrolysis) in the follicle.
Question 5
In the galvanic modality, what chemical is produced at the negative
electrode (the probe) that causes destruction of the hair follicle?
A) Hydrochloric acid
B) Sodium chloride
C) Sodium hydroxide (lye)
D) Sulfuric acid
E) Hydrogen peroxide
Correct Answer: C) Sodium hydroxide (lye)
Rationale: When direct current passes through saline (salt water) in
the follicle, it breaks down into its constituent ions. At the negative
electrode (the probe), sodium ions combine with water to form
sodium hydroxide (lye), a corrosive chemical that destroys the
follicular tissue.
,Question 6
The thermolysis modality uses which of the following to destroy the hair
follicle?
A) Chemical reaction (lye)
B) Extreme cold
C) Heat generated by high-frequency alternating current
D) Ultrasonic waves
E) Light energy
Correct Answer: C) Heat generated by high-frequency alternating
current
Rationale: Thermolysis uses high-frequency (HF) alternating current
(AC) to create intense heat through oscillation of water molecules in
the tissue, coagulating the protein in the hair follicle and
surrounding cells.
Question 7
Which electrology modality combines both direct current and high-frequency
alternating current?
A) Galvanic
B) Thermolysis
C) Flash
D) Blend
E) Diathermy
Correct Answer: D) Blend
Rationale: The blend modality combines the chemical action of
galvanic direct current (DC) with the heat produced by thermolysis
high-frequency alternating current (AC) to achieve follicular
destruction.
Question 8
What is the primary purpose of proper probe insertion in electrology?
A) To minimize pain for the client.
, B) To ensure the current reaches the target cells in the hair follicle accurately.
C) To prevent the hair from growing back thicker.
D) To accelerate the hair growth cycle.
E) To lighten the client's skin.
Correct Answer: B) To ensure the current reaches the target cells in
the hair follicle accurately.
Rationale: Accurate probe insertion to the correct depth and angle
ensures that the destructive current is delivered precisely to the
germinative cells within the follicle, leading to effective and
permanent hair removal.
Question 9
Which type of probe/needle is designed with a larger surface area at the tip,
often used in thermolysis for greater heat dispersion?
A) Insulated probe
B) Tapered probe
C) Ballet probe
D) Bulbous probe
E) Straight probe
Correct Answer: D) Bulbous probe
Rationale: Bulbous or "rounded" probes have a slightly larger tip
area, which can be advantageous in thermolysis for wider heat
distribution, though specific probe choice depends on hair and skin
type.
Question 10
The "dermal papilla" is critical for hair growth because it:
A) Protects the hair from UV radiation.
B) Contains the blood supply and nerve endings that nourish the hair.
C) Secretes sebum for lubrication.
D) Controls the color of the hair.
E) Is responsible for keratin production in the hair shaft.
QUESTIONS AND CORRECT DETAILED ANSWERS
Question 1
Which layer of the skin is primarily responsible for generating new hair cells?
A) Epidermis
B) Dermis
C) Hypodermis
D) Stratum corneum
E) Subcutaneous tissue
Correct Answer: B) Dermis
Rationale: The hair follicle, which is responsible for hair growth, is
located within the dermis layer of the skin. Specifically, the dermal
papilla within the hair bulb contains cells that produce new hair.
Question 2
What is the primary function of the sebaceous glands in relation to hair?
A) To produce sweat for cooling.
B) To provide structural support for the hair shaft.
C) To lubricate the skin and hair with sebum.
D) To regulate hair growth cycles.
E) To provide sensory reception.
Correct Answer: C) To lubricate the skin and hair with sebum
Rationale: Sebaceous glands secrete sebum, an oily substance that
lubricates the hair shaft and skin, helping to keep them moisturized
and protected.
Question 3
The growth phase of hair, during which active hair production occurs, is
known as the:
A) Catagen phase
B) Telogen phase
C) Anagen phase
D) Exogen phase
,E) Latent phase
Correct Answer: C) Anagen phase
Rationale: The anagen phase is the active growth stage of hair,
characterized by rapid cell division in the hair matrix. This is the
ideal stage for electrology treatment.
Question 4
Which type of current is used in the galvanic modality of electrology?
A) High-frequency alternating current
B) High-frequency direct current
C) Low-frequency alternating current
D) Low-frequency direct current
E) Pulsed electromagnetic field
Correct Answer: D) Low-frequency direct current
Rationale: The galvanic modality uses low-frequency direct current
(DC) to create a chemical reaction (electrolysis) in the follicle.
Question 5
In the galvanic modality, what chemical is produced at the negative
electrode (the probe) that causes destruction of the hair follicle?
A) Hydrochloric acid
B) Sodium chloride
C) Sodium hydroxide (lye)
D) Sulfuric acid
E) Hydrogen peroxide
Correct Answer: C) Sodium hydroxide (lye)
Rationale: When direct current passes through saline (salt water) in
the follicle, it breaks down into its constituent ions. At the negative
electrode (the probe), sodium ions combine with water to form
sodium hydroxide (lye), a corrosive chemical that destroys the
follicular tissue.
,Question 6
The thermolysis modality uses which of the following to destroy the hair
follicle?
A) Chemical reaction (lye)
B) Extreme cold
C) Heat generated by high-frequency alternating current
D) Ultrasonic waves
E) Light energy
Correct Answer: C) Heat generated by high-frequency alternating
current
Rationale: Thermolysis uses high-frequency (HF) alternating current
(AC) to create intense heat through oscillation of water molecules in
the tissue, coagulating the protein in the hair follicle and
surrounding cells.
Question 7
Which electrology modality combines both direct current and high-frequency
alternating current?
A) Galvanic
B) Thermolysis
C) Flash
D) Blend
E) Diathermy
Correct Answer: D) Blend
Rationale: The blend modality combines the chemical action of
galvanic direct current (DC) with the heat produced by thermolysis
high-frequency alternating current (AC) to achieve follicular
destruction.
Question 8
What is the primary purpose of proper probe insertion in electrology?
A) To minimize pain for the client.
, B) To ensure the current reaches the target cells in the hair follicle accurately.
C) To prevent the hair from growing back thicker.
D) To accelerate the hair growth cycle.
E) To lighten the client's skin.
Correct Answer: B) To ensure the current reaches the target cells in
the hair follicle accurately.
Rationale: Accurate probe insertion to the correct depth and angle
ensures that the destructive current is delivered precisely to the
germinative cells within the follicle, leading to effective and
permanent hair removal.
Question 9
Which type of probe/needle is designed with a larger surface area at the tip,
often used in thermolysis for greater heat dispersion?
A) Insulated probe
B) Tapered probe
C) Ballet probe
D) Bulbous probe
E) Straight probe
Correct Answer: D) Bulbous probe
Rationale: Bulbous or "rounded" probes have a slightly larger tip
area, which can be advantageous in thermolysis for wider heat
distribution, though specific probe choice depends on hair and skin
type.
Question 10
The "dermal papilla" is critical for hair growth because it:
A) Protects the hair from UV radiation.
B) Contains the blood supply and nerve endings that nourish the hair.
C) Secretes sebum for lubrication.
D) Controls the color of the hair.
E) Is responsible for keratin production in the hair shaft.
