What is the name of the granular layer of the epidermis?

The granular layer of the epidermis is known as the stratum granulosum. This specific layer is significant because it contains keratinocytes that are undergoing a process called keratinization, where they begin to generate keratin, a key structural protein that contributes to the skin's protective barrier. The cells in the stratum granulosum have a characteristic appearance due to the presence of granules that contain keratohyalin, which helps to bind keratin filaments together.

This layer plays a crucial role in the overall health and function of the skin, as it is involved in the transition of the cells from living to dead, preparing them to form the outermost layer known as the stratum corneum, which serves as the first line of defense against environmental damage. Understanding the function and characteristics of the stratum granulosum is important for nail technicians and skincare professionals, as it informs them about the epidermis' structure and its importance in maintaining skin integrity.