what does this system help with

what are two major types of scleroderma

tough outer layer that acts as the first line of defense against the external environment. is composed of stratified squamous epithelial cells that further break down into four to five layers. 

Role is to support the epidermis and enable the skin to thrive. Contains nerve endings, blood vessels, oil glands, hair follicles and sweat glands. The nerve endings work with your muscles to prevent you from getting hurt​

consists of loose areolar connective tissue and adipose tissue which functions as a mode of fat storage and provides insulation and cushioning for the integument.   ​

set of organs that forms the external covering of the body and protects it from many threats