Colorado Cosmetology Written Practice Exam

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What is the technical term for gray hair?

Alopecia areata
Canities
Telogen effluvium
Trichorrhexis nodosa

The correct answer is: Canities

The technical term for gray hair is "canities." This term specifically refers to the graying of hair that occurs as part of the natural aging process or due to other factors such as genetics or health. As hair loses its pigment production, it can turn gray or white, which is directly related to canities. Alopecia areata refers to a type of hair loss characterized by patchy baldness, not gray hair. Telogen effluvium is a temporary form of hair loss that occurs after stress or trauma, while trichorrhexis nodosa is a condition that causes the hair shaft to weaken and split, leading to frizzy, brittle hair. These terms indicate different hair-related conditions and do not describe the phenomenon of hair turning gray.