What does the term 'subcutaneous' refer to?

The term 'subcutaneous' specifically refers to the layer of tissue located beneath the skin. This term is derived from Latin roots, where "sub" means "under" and "cutaneous" relates to the skin. The subcutaneous layer, or hypodermis, serves several important functions in the body, including providing insulation, cushioning and storing fat, and facilitating the movement of skin over underlying structures. By understanding this definition, it's clear that the correct interpretation of 'subcutaneous' is that it pertains to an area beneath the skin.