I. The Central Nervous System 336
1. Spinal Cord 336
2. The Brain 339
(1) Myelencephalon 344
(2) Metencephalon 347
(3) Mesencephalon 351
(4) Diencephalon 352
(5) Telencephalon 357
II. The Peripheral Nervous System 369
1. Cranial Nerves 369
I. Olfactory Nerve 369
II. Optic Nerve 369
III. Oculomotor Nerve 369
IV. Trochlear Nerve 370
V. Trigeminal Nerve 370
VI. Abducens 375
VII. Facial Nerve 375
VIII. Auditory Nerve 377
IX. Glossopharyngeal Nerve 378
X. Vagus Nerve 378
XI. Accessory Nerve 382
XII. Hypoglossal Nerve 383
2. Spinal Nerves 383
_A._ Cervical Nerves 383
The Brachial Plexus 386
_B._ Thoracic Nerves 393
_C._ Lumbar Nerves 394
Lumbar Plexus 395
_D._ Sacral Nerves and Sacral Plexus 399
_E._ Nerves of the Tail 404
3. Sympathetic System 404