. The anatomy of the domestic animals. Veterinary anatomy. THE BRAIN 771 Tlic ninth or glosso-pharyngeal, the tenth or vagus, and the eleventh or spinal accessory nerves arc connrctcd by a linear series of roots with the lateral aspeet of the ventral surface of the medulla. The spinal part of the accessory' nerve eonies forward along the edge of the medulla to join its medullary root. The twelfth or hypoglossal nerve arises from the posterior part of the medulla along the lateral edge of the pyramid. The parts that are visiijle when the lirain is \'iewed from above are the cerebral licniis]ihc
. The anatomy of the domestic animals. Veterinary anatomy. THE BRAIN 771 Tlic ninth or glosso-pharyngeal, the tenth or vagus, and the eleventh or spinal accessory nerves arc connrctcd by a linear series of roots with the lateral aspeet of the ventral surface of the medulla. The spinal part of the accessory' nerve eonies forward along the edge of the medulla to join its medullary root. The twelfth or hypoglossal nerve arises from the posterior part of the medulla along the lateral edge of the pyramid. The parts that are visiijle when the lirain is \'iewed from above are the cerebral licniis]ihcres, the cerebelhnn, and part of the medulla oblongata. The cerebral hemispheres (Hemisphtrria cerebri) form an ovoid mass, and are separated from each other by the median longitudinal fissure (Fissura longitudinalis cerebri), Longitiiihnal Ji^^inc Sulcus rhinaliS'^^ Optic nerve ^ 0}:tie chiasma ^^^ Tuhr cixvretim -__ Piriform lobe Pituitari/ body — Ocuhiinolor ncree - Trigciiiiiia nerve 1 ( sensory root - I] motor root -X^ Cerebellum -__ Tuberculum faciale Glosso-phnryiigeal ni Vagus nerre Accessory nerve (medullary root) Accessory nerve {spinal root) Hypoglossal nerve Fig. 630.—Line IT, .\ — Otfiictory bulb ^^^ Olfactory tract ._-- Medial stria , Lateral stria — Trigonum olfactorium ^\~ Fossa lateralis Cerebral peduncle Tractus ped. transversus Interpeduncular fossa Pons Corpus trapezoideum — Pyramid Medulla oblongata " "— Chorioid plexus of fourth ventricle Median fissure and de- cussation of pyramids — Spinal cord HoBSE. (Key to Fiq. 629.) VUT, acoustic nerve. in which the falx cerebri is situated. Their surfaces are marked by thick ridges, the gyri cerebri, separated by sulci. The upturned ends of the olfactory bulbs are seen in front of the frontal poles of the hemispheres. The occipital jjoles of the hemispheres overlie the anterior part of the cerebellum, from which they are separated bj^ the transverse fissure (Fissura transversa cerebri) a
Size: 1172px × 2131px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectveterinaryanatomy
