Cranial Nerve II: Optic Nerve

By: Varsha Kumari INTRODUCTION: The optic nerve, also known as cranial nerve II, is different from other paired cranial nerves in that it is not part of the peripheral nervous system (PNS). Instead, it is a white-matter tract of the central nervous system (CNS) and contains around 1.2 million axons from retinal ganglion cells. Unlike […]