Esthetician Practice Exam Esthetician Practice Anatomy and Physiology 1 — Questions and Answers
Question 1: Which layer of the epidermis is responsible for producing new skin cells through cell division?
- Stratum corneum
- Stratum granulosum
- Stratum germinativum (basale) (Correct answer)
- Stratum spinosum
Correct answer: Stratum germinativum (basale)
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?
- Trigeminal nerve (CN V)
- Facial nerve (CN VII) (Correct answer)
- Glossopharyngeal nerve (CN IX)
- Vagus nerve (CN X)
Correct answer: Facial nerve (CN VII)
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?
- Regulate skin hydration
- Produce the pigment melanin (Correct answer)
- Initiate immune responses
- Anchor the epidermis to the dermis
Correct answer: Produce the pigment melanin
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?
- Collagen fibers
- Reticular fibers
- Elastic fibers (Correct answer)
- Keratin fibers
Correct answer: Elastic fibers
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?
- Closing the jaw
- Raising the eyebrows and wrinkling the forehead (Correct answer)
- Compressing the cheeks
- Depressing the lower lip
Correct answer: Raising the eyebrows and wrinkling the forehead
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.
Question 6: Which structure within the dermis is responsible for detecting light touch and fine tactile sensations on the skin?
- Pacinian corpuscles
- Meissner's corpuscles (Correct answer)
- Ruffini endings
- Free nerve endings
Correct answer: Meissner's corpuscles
Meissner's corpuscles are encapsulated mechanoreceptors located in the dermal papillae, particularly in hairless skin, and are specialized to detect light touch and texture — relevant to understanding client sensitivity during facial treatments.
Esthetician Practice Exam Esthetician Practice Anatomy and Physiology 1
Which layer of the epidermis is responsible for producing new skin cells through cell division?