. Handbook of anatomy; being a complete compend of anatomy, including the anatomy of the viscera a chapter on dental anatomy, numerous tables, and incorporating the newer nomenclature adopted by the German anatomical Society, generally designated the Basle nomenclature or BNA . ayer offusiform cell-bodies. CRANIAL NERVES. The cranial nerves (nervi cerebral es) consist of twelvepairs, as follows:— 1. Olfactory, 8. Auditory (portio mollis), 2. Optic, 9. Glossopharyngeal, 3. Motores oculorum, 10. Pneumogastric (vagus, or par 4. Pathetici, vagum), 5. Trifacial, 11. Spinal accessory, 6. Abducentes,
. Handbook of anatomy; being a complete compend of anatomy, including the anatomy of the viscera a chapter on dental anatomy, numerous tables, and incorporating the newer nomenclature adopted by the German anatomical Society, generally designated the Basle nomenclature or BNA . ayer offusiform cell-bodies. CRANIAL NERVES. The cranial nerves (nervi cerebral es) consist of twelvepairs, as follows:— 1. Olfactory, 8. Auditory (portio mollis), 2. Optic, 9. Glossopharyngeal, 3. Motores oculorum, 10. Pneumogastric (vagus, or par 4. Pathetici, vagum), 5. Trifacial, 11. Spinal accessory, 6. Abducentes, 12. Hypoglossal. 7. Facial (portio dura), 1. Olfactory nerve (n. olfactorius), special nerve ofsmell. A number of nerves (20) arise from the olfactory bulbor lobe of the brain. Superficial origin of the tract by roots:internal from frontal lobe, middle or gray root from the olfac-tory tubercle (trigonum olfactorium) between the other roots THE NERVOUS SYSTEM. 323 of the tract, and external from the middle lobe; deep origin,from gyrus fornicatus, uncinate gyrus of limbic lobe; course,roots unite, pass forward, and form bulbus olfactorius (fromthis the olfactory nerves are given off) ; exit, foramina of crib-riform plate of ethmoid; distribution, by three groups to mu-. FiG. 114. Scheme of the nuclei and root-fibers of the cranial nerves.(Whitehead, after Edinger.) (Schneiderian) membrane of nares, inner to septum nasi,middle to roof of nasal fossa, outer to superior turbinated Optic nerve (n. opticus), special nerve of sight; super-ficial origin, optic chiasms or commissure formed by union ofthe optic tracts. The commissure and tracts contain intercere- 324 HUMAN ANATOMY. bral fibers, the cerebroretinal fibers of the same side, and thecerebroretinal fibers of opposite sides. Deep origin, the optictracts arise from optic thalamus, the upper corpora quadri-gemina and corpora geniculati; course, diverge and pass for-
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1917
