Final answer:
The most superficial layer of the integument is called the stratum corneum. It consists of dry, dead cells that help protect the underlying layers of the skin from microbes and dehydration.
Step-by-step explanation:
The most superficial layer of the integument is called the stratum corneum. This layer is part of the epidermis and is exposed to the outside environment. It consists of dry, dead cells that help prevent the penetration of microbes and dehydration of underlying tissues. The stratum corneum is periodically shed and replaced by cells from the deeper layers of the epidermis.