what tissue is the fat layer
Subcutaneous tissue, which is also known as the hypodermis, is the innermost layer of skin. It's made up of fat and connective tissues that house larger blood vessels and nerves. Subcutaneous tissue acts as an insulator and regulates body temperature. The thickness of this layer varies throughout the body and from person to person. Subcutaneous Tissue Composition. The skin is composed of three layers: the epidermis, the dermis, and subcutaneous tissue. There are several structures and specialized cells that exist within subcutaneous tissue, including: Collagen and elastin fibers. Fat cells. Blood vessels. Sebaceous glands. Nerve endings. Hair follicle roots.