What characteristic is associated with the stratum corneum?

The stratum corneum is the outermost layer of the epidermis and plays a crucial role in protecting the body from external threats. This layer is composed primarily of dead skin cells that have undergone a process called keratinization, resulting in a barrier that prevents moisture loss and shields against environmental factors such as bacteria, pathogens, and harmful chemicals.

This protective function makes the stratum corneum essential for maintaining the integrity of the skin and supporting overall skin health. Its role as the first line of defense is vital in ensuring that the underlying layers of the skin and the internal organs remain safe from external damage and infection.

In contrast, the inner layer of the skin refers to deeper structures, the layer that produces new skin cells is associated with the basal layer of the epidermis, and blood vessels and nerves are primarily found in the dermis, which lies beneath the epidermis. Thus, the characteristic nature of the stratum corneum is clearly linked to its protective capabilities against external threats.