What is the basal layer of the epidermis commonly referred to as?

The basal layer of the epidermis is commonly referred to as the stratum germinativum. This layer is critical for the regeneration of the skin, as it contains actively dividing cells known as keratinocytes. These cells move upward through the layers of the epidermis, undergoing a process of keratinization as they reach the outermost layer, known as the stratum corneum. The stratum germinativum also plays an essential role in skin pigmentation, as it houses melanocytes, which produce melanin to protect the skin from UV radiation. In summary, recognizing the stratum germinativum as the basal layer is fundamental to understanding skin biology and the processes of skin renewal and protection.