24/25 Laser - Week 4

Which layer of the skin contains the hair shaft?

• Epidermis

• Dermis

• Subcutaneous fat

• Medulla

What is the role of the dermal papilla in the hair growth cycle?

• It causes hair to shed

• It initiates apoptosis

• It supports hair growth

• It is involved in the resting phase

Lanugo hair is typically found during which stage of human development?

• Infancy

• Childhood

• Fetal stage

• Adulthood

Vellus hair is most commonly found on which part of the body?

• Scalp

• Arms

• Legs

• Entire body

What is the definition of "Fluence"?

• The duration of light pulses

• The amount of energy delivered to a certain area

• The time it takes the target to cool to half of its original temperature

• Targets used for treatments in the skin

Which phase of the hair growth cycle is known by active hair growth?

• Catagen

• Telogen

• Anagen

• Exogen

Which type of hair is typically thicker and more pigmented?

• Vellus hair

• Lanugo hair

• Terminal hair

• Intermediate hair

Anagen hair has the highest content of melanin?

• True

• False

Thermal relaxation time is the duration of light pulses?

• True

• False

What is the treatment frequency for hair removal on the face?

• 6-8 weeks

• 2-4 weeks

• 4-6 weeks

• 3-5 weeks