Esthetician Practice Exam Esthetician Practice Anatomy and Physiology 1

Question 1

Which layer of the epidermis is responsible for producing new skin cells through cell division?

Accepted Answer

Stratum germinativum (basale)

Answer

The stratum germinativum (basale) is the deepest epidermal layer and contains mitotically active cells that continuously divide to replenish the skin's upper layers.

Question 2

Which cranial nerve is primarily responsible for motor control of the facial muscles used in expressions?

Accepted Answer

Facial nerve (CN VII)

Answer

The facial nerve (CN VII) innervates the muscles of facial expression, making it the key motor nerve estheticians consider when performing facial massage or treatments that affect muscle tone.

Question 3

What is the main function of melanocytes found in the basal layer of the epidermis?

Accepted Answer

Produce the pigment melanin

Answer

Melanocytes produce melanin, the pigment responsible for skin, hair, and eye color, and they help protect the skin from UV radiation by transferring melanin to surrounding keratinocytes.

Question 4

Which type of connective tissue fiber gives skin its elasticity and allows it to return to its original shape after stretching?

Accepted Answer

Elastic fibers

Answer

Elastic fibers, composed of the protein elastin, provide skin with its ability to stretch and recoil. Loss of elastic fibers with age contributes to sagging and wrinkle formation.

Question 5

The frontalis muscle, frequently targeted during facial massage, is responsible for which movement?

Accepted Answer

Raising the eyebrows and wrinkling the forehead

Answer

The frontalis is the muscle of the forehead that elevates the eyebrows and creates horizontal forehead wrinkles. It is a common target in facial massage to relieve tension and minimize expression lines.

Esthetician Practice Exam Practice Test

Esthetician Practice Exam Practice Test

Esthetician Practice Exam Esthetician Practice Anatomy and Physiology 1