Summary of the major extra- and intracranial anastomoses
| Extracranial | Intracranial | |||
|---|---|---|---|---|
| Major artery | Location | Branch | Branch | Artery |
| Internal maxillary artery | Proximal | MMA | Orbital branches, anterior branch (anterior falcine artery) | Ophthalmic artery |
| Cavernous branches | ILT | |||
| Petrous branch | CN VII supply | |||
| Proximal | AMA | Artery of foramen ovale | ILT | |
| Distal | Vidian artery | Petrous ICA | ||
| Distal | Artery of foramen rotundum | ILT | ||
| Distal | Anterior deep temporal artery | Ophthalmic artery | ||
| Superficial temporal artery | Frontal branch | Supraorbital branch | Ophthalmic artery | |
| Ascending pharyngeal artery | Pharyngeal trunk | Superior pharyngeal artery | Carotid branch (foramen lacerum) | Lateral clival artery |
| Neuromeningeal trunk | Odontoid arch | Vertebral artery (C1) | ||
| Hypoglossal and jugular branch | Meningohypophyseal trunk of ICA | |||
| Posterior auricular-occiptal artery | Stylomastoid branch | CN VII supply | ||
| Occipital artery | Muscular branches | Vertebral artery (C1–C2) | ||
| Ascending and deep cervical arteries | Vertebral artery (C3–C7) | |||
Note:—MMA indicates middle meningeal artery; AMA, accessory meningeal artery; ILT, inferolateral trunk; ICA, internal carotid artery; CN, cranial nerve.