The deep layer (prevertebral) is posterior to the visceral fascia and defnes the contents of the pre-vertebral space (PVS). The retropharyngeal space (RPS) is bordered anteriorly by the visceral fascia and posteriorly by the prevertebral fascia and is commonly referred to as the "danger space.
A fascial compartment is a section within the body that contains muscles and nerves and is surrounded by fascia. In the human body, the limbs can each be divided into two segments – the upper limb can be divided into the arm and the forearm and the sectional compartments of both of these – the fascial compartments of the arm and the fascial compartments of the forearm contain an anterior and a posterior compartment.
Muscle Fascia Anatomy. While the above definition is okay as a generalization, the topic of muscle fascia is a little more complex. This section on muscle fascia anatomy offers a more detailed explanation of what muscle fascia is and where it occurs within the muscles.
A fibrous sheet or flat, expanded tendon, giving attachment to muscular fibers and serving as the means of proximal or distal attachment (origin or insertion) of a flat muscle; it sometimes also performs the functions of a fascia for other muscles.