List of vessels classified by flow direction and drainage type
| Venous Type I (Primary) | Venous Type II (Paraspinal) | Venous Type III (Superficial) | Arteries |
|---|---|---|---|
| Internal jugular veins | Deep cervical veins | External jugular veins | Vertebral arteries |
| Vertebral veins | Anterior jugular veins | Internal carotid arteries | |
| Epidural veins | Posterior external jugular veins | ||
| Anterior vertebral venous plexus veins | |||
| Posterior vertebral venous plexus veins |