Rhode Island Cosmetology and Barbering Practice Exam

Question: 1 / 400

What are the three main sections of the hair shaft?

The cuticle, cortex, and medulla

The three main sections of the hair shaft are indeed the cuticle, cortex, and medulla.

The cuticle is the outermost layer of the hair, composed of overlapping flattened cells that protect the inner layers. It serves as a barrier to prevent damage and moisture loss.

The cortex is the thickest layer and contains long chains of keratin that provide strength, color, and texture to the hair. This layer is crucial as it influences many of the physical properties of hair, such as elasticity and overall health.

The medulla, which is the innermost layer, may not be present in all types of hair, but when it is, it contributes to the overall structure and may affect the hair's density.

Understanding these layers is essential for hairstylists and barbers, as it influences how they treat and style hair, with each section playing a unique role in the hair's overall functionality and appearance.

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The root, shaft, and tip

The bulb, shaft, and outer layer

The cuticle, root, and scalp

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