What is the stratum germinativum also known as?

The stratum germinativum is commonly referred to as the basal layer of the epidermis. This layer is significant because it is where new keratinocytes are generated. It sits directly above the dermis and contains living cells that proliferate and gradually move up to the skin's surface, undergoing a process of keratinization as they do so. This continuous cell division plays a crucial role in skin regeneration and repair.

In contrast, the other layers mentioned have distinct characteristics and functions: the corneal layer, or stratum corneum, consists of dead keratinized cells that provide a protective barrier; the spinous layer, or stratum spinosum, helps provide strength and flexibility to the skin; and the granular layer, or stratum granulosum, contains cells that are starting to flatten and lose their nuclei, marking a transition in the process of keratinization. Each of these layers is part of the skin's layered structure, but the term "stratum germinativum" specifically denotes the basal layer, which is critical for the creation of new skin cells.