EC Skin Anatomy and Physiology 3

Question 1

Which layer of the epidermis contains cells with visible keratohyalin granules that contribute to the formation of keratin?

Accepted Answer

Stratum granulosum

Answer

The stratum granulosum (granular layer) contains keratinocytes filled with keratohyalin granules, which are precursors to the keratin proteins that harden as cells move toward the surface.

Question 2

The stratum lucidum is a clear, translucent epidermal layer found only in which body regions?

Accepted Answer

Palms of hands and soles of feet

Answer

The stratum lucidum is present only in thick, hairless skin of the palms and soles, where an extra layer of dead cells provides additional protection against friction.

Question 3

Langerhans cells found in the epidermis serve which primary function important for client safety?

Accepted Answer

Acting as immune surveillance cells that detect foreign antigens

Answer

Langerhans cells are dendritic immune cells in the epidermis that detect and present foreign antigens to T-lymphocytes, playing a key role in allergic and immune reactions relevant to electrolysis product safety.

Question 4

When an electrologist observes telangiectasias (broken capillaries) on a client's face, these are located in which skin layer?

Accepted Answer

The dermis, within the papillary or reticular layer

Answer

Blood vessels, including the dilated capillaries that appear as telangiectasias, are located in the dermis (papillary and reticular layers) — not in the avascular epidermis.

Question 5

The dermal papillae (finger-like projections of the dermis into the epidermis) serve which function critical to hair follicle health?

Accepted Answer

They bring blood supply and nutrients close to the epidermal cells and hair matrix

Answer

Dermal papillae increase the surface area between dermis and epidermis, bringing capillaries close to supply nutrients and oxygen to the actively dividing cells of the epidermis and hair follicle matrix.

(EC) Electrolysis Certification Practice Test

(EC) Electrolysis Certification Practice Test

EC Skin Anatomy and Physiology 3