Alaska Hairdresser and Barber Certification Practice Exam

What does the term 'follicle' refer to in hair anatomy?

1. The outer layer of hair

2. The small cavity from which hair grows

3. The root of the hair

4. The hair shaft

The correct answer is: The small cavity from which hair grows

The term 'follicle' refers to the small cavity from which hair grows, making this choice the most accurate. A hair follicle is a tiny, tube-like structure located in the dermis of the skin that encases the hair root. It plays a crucial role in the hair growth cycle and is responsible for producing the hair strand itself. The follicle also houses the hair bulb, where the actual growth occurs as cells multiply and differentiate. Other terms related to hair anatomy might include the outer layer of hair, which is known as the cuticle, the root of the hair, which refers to the portion of hair that resides in the follicle but does not encompass the follicle itself, and the hair shaft, which is the visible part of the hair that emerges from the follicle. Understanding the specifics of hair anatomy, including the function and significance of the follicle, is essential for anyone studying to become a hairdresser or barber.