Final answer:
For control during a haircut, the hair is parted into uniform working areas called sections. This allows a hairstylist to be precise and consistent. Understanding the structure of the hair shaft, such as the cuticle, cortex, and medulla, also contributes to effective haircutting techniques.
Step-by-step explanation:
For control during a haircut, the hair is parted into uniform working areas called sections. When a hairstylist organizes the hair into these smaller, more manageable areas, it allows for greater precision and consistency in haircuts. Other aspects of hair structure, such as the hair shaft, have different zones: the outermost zone called the cuticle; the middle zone called the cortex, and the innermost zone called the medulla.
Moreover, while not directly related to hair cutting, it is interesting to note in the context of partitioning in biology, that a plane dividing an animal into equal right and left portions is known as a midsagittal plane, which again emphasizes the importance of understanding sections and divisions in various practices.