posted by blondie .
I am so confused about this question but What is the principal function of the subcutaneous layer of the skin?
The subcutaneous fat layer, or hypodermis, bridges between the overlying dermis and the underlying body constituents. In most areas of the body this layer is relatively thick, typically in the order of several millimetres. However, there are areas of the body in which the subcutaneous fat layer is absent, such as the eyelids. This layer of adipose tissue principally serves to insulate the body and to provide mechanical protection against physical shock. The subcutaneous fatty layer can also provide a readily available supply of high-energy molecules, whilst the principal blood vessels and nerves are carried to the skin in this layer.
Subcutaneous layer is not part of skin
it stores Fat,Blood vessels Pacinian corpuscles (sensitive to pressure).