Esthetician Practice Exam Esthetician Practice Skin Histology and Disorders Questions and Answers 2

Question 1

Which layer of the epidermis contains cells that are actively dividing through mitosis?

Accepted Answer

Stratum basale

Answer

The stratum basale is the deepest epidermal layer where keratinocytes undergo mitotic division to produce new skin cells.

Question 2

A client presents with symmetrical, brown patches on the cheeks and forehead that worsened during pregnancy. What is the most likely condition?

Accepted Answer

Melasma

Answer

Melasma is a hormonally triggered hyperpigmentation condition commonly appearing as symmetrical brown patches on the face during pregnancy.

Question 3

What protein provides the skin with its waterproof barrier function in the stratum corneum?

Accepted Answer

Keratin

Answer

Keratin is a tough, fibrous protein that fills corneocytes in the stratum corneum, creating the skin's waterproof protective barrier.

Question 4

Which skin disorder is characterized by silvery-white scales on raised, erythematous plaques and is considered autoimmune in nature?

Accepted Answer

Psoriasis

Answer

Psoriasis is an autoimmune condition causing rapid skin cell turnover that results in thick, silvery-white scales on red, inflamed plaques.

Question 5

Langerhans cells found in the epidermis are primarily responsible for which function?

Accepted Answer

Immune defense

Answer

Langerhans cells are dendritic immune cells in the epidermis that detect and present foreign antigens to activate the body's immune response.

Esthetician Practice Exam Practice Test