Anatomy and Physiology Flashcards
7 cards from real Cosmetology Test practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Anatomy and Physiology flashcards as text
Which structure in the hair follicle is responsible for hair pigmentation?
Answer: Melanocytes in the bulb matrix
Melanocytes located in the hair bulb matrix inject melanin into developing hair cortex cells, determining hair color.
Eccrine sweat glands are distributed over most of the body and primarily function to:
Answer: Regulate body temperature through evaporative cooling
Eccrine glands secrete a watery sweat that evaporates to dissipate body heat, helping maintain core temperature.
The occipital bone of the skull forms which part of the head?
Answer: Back and base of the skull
The occipital bone forms the posterior and inferior portion of the cranium, including the foramen magnum.
Which phase of the hair growth cycle involves active cell division and hair elongation?
Answer: Anagen
The anagen phase is the active growth phase during which hair matrix cells divide rapidly and hair grows in length.
The frontalis muscle primarily causes:
Answer: Elevation of the eyebrows and wrinkling of the forehead
The frontalis elevates the eyebrows and creates horizontal forehead wrinkles when contracted.
What is the term for the protein that makes up the bulk of the hair shaft?
Answer: Keratin
Hair is composed primarily of hard keratin, a fibrous structural protein also found in nails and the outer layer of skin.
The zygomaticus major muscle is responsible for:
Answer: Pulling the corners of the mouth upward and outward (smiling)
The zygomaticus major draws the angle of the mouth superiorly and laterally, producing a smile.