Kansas Barber Practice Exam

Which of the following are the three layers of hair?

1. Cuticle, cortex, and medulla

2. Epidermis, dermis, and hypodermis

3. Root, shaft, and tip

4. Scalp, hair shaft, and follicle

The correct answer is: Cuticle, cortex, and medulla

The three layers of hair are the cuticle, cortex, and medulla. Each of these layers has distinct characteristics and functions that contribute to the overall structure and properties of the hair. The cuticle is the outermost layer and consists of overlapping, scale-like cells that provide protection to the inner layers. This layer plays a crucial role in protecting the hair from damage and environmental factors while also influencing the hair’s overall appearance and shine. The cortex, which lies beneath the cuticle, makes up the bulk of the hair strand and contains keratin fibers. This is the layer responsible for the hair's strength, color, and texture. The arrangement of these fibers and the density of melanin (the pigment that gives hair its color) are what determine various hair qualities. The medulla is the innermost layer and is not always present in all hair types. It is usually a soft, spongy structure that can contribute to the overall thickness of the hair. In some cases, the medulla may be absent, particularly in finer hair types. Understanding these layers is essential for various barbering techniques, including cutting, coloring, and styling, as each layer can react differently to chemical and physical treatments.