What is the hypodermis also referred to as?

The hypodermis is correctly referred to as the subcutaneous layer. This layer lies below the dermis and primarily consists of fat and connective tissue that serves several important functions. One major role of the subcutaneous layer is to insulate the body, helping to regulate temperature and protect underlying muscles and bones from injury. It also serves as an energy reserve due to the fat stored within it. Additionally, this layer helps anchor the skin to the underlying structures while allowing it some degree of flexibility and movement.

Understanding the specific function and composition of the subcutaneous layer is vital when studying the skin's anatomy. It differs from the epidermis, which is the outermost layer of skin responsible for protection, and the dermal layer, which contains connective tissue, blood vessels, and hair follicles. The basal layer refers specifically to the deepest part of the epidermis where new skin cells are generated, further emphasizing the distinct characteristics that define the hypodermis as the subcutaneous layer.