Figure 5: The lowest four cranial nerves are shown emerging from the jugular and hypoglossal foramina, where they join the sympathetic plexus within the carotid sheath. Here, these structures are vulnerable to the compressive effects of a mural hematoma resulting from a carotid dissection. Reproduced, with permission, from FitzGerald MJT, Gruener G, Mtui E. 6Clinical Neuroanatomy and Neuroscience, 5th ed. Figure 18.2. Copyright 2007 Elsevier.