RT Book, Section A1 Waxman, Stephen G. SR Print(0) ID 1186189363 T1 Cranial Nerves and Associated Pathways T2 Clinical Neuroanatomy, 29e YR 2020 FD 2020 PB McGraw-Hill Education PP New York, NY SN 9781260452358 LK accessphysiotherapy.mhmedical.com/content.aspx?aid=1186189363 RD 2024/10/15 AB There are 12 pairs of cranial nerves. The cranial nerves are referred to by either name or Roman numeral (Fig 8–1 and Table 8–1). Some authorities contend that the olfactory peduncle (see Chapter 19) and the optic nerve (see Chapter 15) are not true nerves but rather fiber tracts of the brain, whereas nerve XI (the spinal accessory nerve) is derived, in part, from the upper cervical segments of the spinal cord. The remaining nine pairs relate to the brain stem.