Cranial nerve nuclei are predominantly found in the brainstem:
- Midbrain: Contains nuclei for cranial nerves III (Oculomotor) and IV (Trochlear). - Pons: Hosts nuclei for cranial nerves V (Trigeminal), VI (Abducens), VII (Facial), and part of VIII (Vestibulocochlear). - Medulla Oblongata: Includes nuclei for cranial nerves IX (Glossopharyngeal), X (Vagus), XI (Accessory), and XII (Hypoglossal).