What is it?
The subcutaneous tissue, also known as subcutis, is the lower layer of the skin. This layer contains connective and fatty tissue as well as major blood vessels and nerves.33 The thickness of the subcutis depends on several factors, including where it is on the body and the person’s age.
What does it do?
The subcutis insulates our bodies. It acts as a cushion, protecting the internal organs from external pressure. It also plays a role in helping the body retain moisture.33
Why is it important?
The subcutaneous tissue is essential precisely because of its role in insulating and padding the body. In this way, it works to protect our bones, muscles, and the organs under the skin from physical damage.