A fascial compartment[1] is a section within the body that contains muscles and nerves and is surrounded by deep fascia.

[2] If these segments are cut transversely, it is apparent that they are divided into multiple sections.

These are called fascial compartments, and are formed by tough connective tissue septa.

These compartments usually have a nerve and blood supply separate from their neighbours.

It is distinguished from pharmacokinetic compartment, which is a defined volume of body fluids.