Esthetician Practice Anatomy and Physiology 1 Flashcards
6 cards from real Esthetician Practice Exam practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Esthetician Practice Anatomy and Physiology 1 flashcards as text
Which layer of the epidermis is responsible for producing new skin cells through cell division?
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.
Which cranial nerve is primarily responsible for motor control of the facial muscles used in expressions?
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.
What is the main function of melanocytes found in the basal layer of the epidermis?
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.
Which type of connective tissue fiber gives skin its elasticity and allows it to return to its original shape after stretching?
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.
The frontalis muscle, frequently targeted during facial massage, is responsible for which movement?
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.
Which structure within the dermis is responsible for detecting light touch and fine tactile sensations on the skin?
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.