What are the two sections of the epidermis?

The correct answer identifies the two distinct sections of the epidermis based on their physiological state: living and dead. The epidermis is the outermost layer of the skin and consists primarily of keratinocytes, which are cells that produce keratin, a protein that helps to protect the skin.

In the living section of the epidermis, located primarily in the lower layers (the stratum basale), the cells are metabolically active and responsible for regeneration. As these cells move up towards the surface of the skin, they undergo a process known as keratinization, where they become filled with keratin and eventually die off, forming the uppermost layer of dead cells. This dead outer layer, known as the stratum corneum, provides a protective barrier against environmental factors.

Understanding the living and dead sections is crucial for comprehending how the skin functions in terms of protection, hydration, and regeneration. The living layer is responsible for growth and renewal, while the dead layer provides structural integrity and a barrier function.

The other options do not accurately represent the layering of the epidermis as comprehensively. While terms like basal and keratinized might refer to specific components within the epidermis, they do not delineate the overall functional states (living