cutaneous muscle cutaneous trunci muscle cutaneous trunci Lying just below the skin, cutaneus trunci is one of very few cutaneus muscles. It composes of a thin sheets of muscle that spred over the body in the superficial fasciae. Their role is to twich the skin to rid of pests etc. Cuteneus muscles are found in all domestic species. UBERON:0011415 MA:0002285 NCIT:C52901 covers the entire body with a thin layer of muscle under the deepest layer of the skin. When an area of neuronal subluxation is stimulated with the activator, the cutaneous trunci muscle contracts and causes an involuntary reflexive spasm or "twitch" of the skin EMAPA:37501