What are the main zones of the epidermis?

The correct answer emphasizes the terminology commonly used to describe the main zones of the epidermis. The epidermis consists of distinct layers, and the "horny zone" refers to the outermost layer known as the stratum corneum, where dead keratinized cells form a protective barrier. The "germinal zone" pertains to the inner layers, particularly the stratum basale, where new skin cells are generated.

Understanding these two zones is crucial in the context of electrolysis since hair growth and skin health are significantly affected by the condition of these layers. The relationship between the epidermis and hair follicles is essential for effective electrolysis treatments. By recognizing the structure and function of these zones, practitioners can enhance their skills in hair removal techniques while safeguarding the skin’s integrity.

The other choices do not accurately reflect the division within the epidermis. The stratum corneum and stratum basale are indeed parts of the epidermis but describing them simply as such does not capture the concept of zones effectively. The mention of the dermis and subcutaneous layer signifies skin structures but not specific zones within the epidermis itself.