Hawaii Barber Operator Practice Exam

The term "cuticle of the hair" refers specifically to the outer layer of the hair shaft, which acts as a protective covering. This outer layer is composed of overlapping transparent cells that help to shield the inner layers of the hair from damage, moisture loss, and environmental factors. It plays a crucial role in the overall health and appearance of hair, as it helps to maintain shine and smoothness.

In contrast, the inner layer of hair is known as the medulla, while the shaft encompasses the entire length of hair, which includes the inner cortex layer. The hair root is the portion of the hair that is embedded in the follicle beneath the scalp and is not visible when looking at the hair itself. Understanding the structure of hair and the specific roles of its layers is essential for proper hair care and styling techniques.