Esthetician Practice Exam Esthetician Practice Skin Histology and Disorders 1

Question 1

Which layer of the epidermis is responsible for producing the pigment melanin?

Accepted Answer

Stratum basale

Answer

Melanocytes are found in the stratum basale (basal layer) and produce melanin, the pigment that gives skin its color and provides protection against UV radiation.

Question 2

A client has small, flesh-colored or yellowish deposits around the eyelids that appear as soft, waxy plaques. Which condition does this describe?

Accepted Answer

Xanthelasma

Answer

Xanthelasma are yellowish, lipid-rich plaques that form under the skin around the eyelids and are often associated with elevated cholesterol levels.

Question 3

The dermis is primarily composed of which type of protein fiber that gives skin its strength and structure?

Accepted Answer

Collagen

Answer

Collagen is the most abundant protein in the dermis, making up approximately 70–80% of the dry weight of the skin and providing tensile strength and structural support.

Question 4

Which skin condition is characterized by chronic inflammation of the sebaceous glands and hair follicles, presenting with comedones, papules, pustules, and sometimes nodules?

Accepted Answer

Acne vulgaris

Answer

Acne vulgaris results from the clogging of hair follicles with dead skin cells and sebum, leading to the formation of comedones, papules, pustules, and potentially nodules or cysts.

Question 5

What is the name of the cells found in the stratum spinosum that play a role in the immune defense of the skin?

Accepted Answer

Langerhans cells

Answer

Langerhans cells are dendritic immune cells located primarily in the stratum spinosum that capture antigens and present them to T-lymphocytes, playing a key role in skin immunity.

Esthetician Practice Exam Practice Test

Esthetician Practice Exam Practice Test

Esthetician Practice Exam Esthetician Practice Skin Histology and Disorders 1