The visceral compartment is anterior and contains parts of the digestive and respiratory systems, and several endocrine glands.
The vertebral compartment is posterior and contains the cervical vertebrae, spinal cord, cervical nerves, and muscles associated with the vertebral column.
The two vascular compartments, one on each side, are lateral and contain the major blood vessels and the vagus nerve [X].
All these compartments are contained within unique layers of cervical fascia.