Muscular system
From Memory Alpha, the free Star Trek reference.
The muscular system is the bodily system that is composed of the muscles and serves the purpose of the movement of the body.
Medical doctors often opt for inter-muscular injections instead of intravenous in Andorians because of their unique physiology. (TOS: "Whom Gods Destroy")
The prepared flesh and muscle of an animal, that is often used as food, is called meat.
