What is the muscles found directly under the skin muscles?

The muscles found directly under the skin are known as the subcutaneous muscles, which include the platysma in the neck and the superficial fascia in other areas of the body. These muscles are part of the superficial layer of the muscular system and are responsible for facial expressions and movements of the skin. They are not typically involved in major body movements but play a role in the overall appearance and function of the skin.