Hawaii Barber Operator Practice Exam

What is commonly referred to as the "cuticle of the hair"?

1. The inner layer of hair

2. The shaft of the hair

3. The outer layer or protective covering

4. The hair root

The correct answer is: The outer layer or protective covering

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.