. Bensley's Practical anatomy of the rabbit : an elementary laboratory text-book in mammalian anatomy. Rabbits -- Anatomy. 362 ANATOMY OF THE RABBIT ta -. (b) The rhomboid fossa (fossa rhomboldea) is the shallow depression enclosed by the thick lateral and anterior walls and floor of the ventricle. The middle line shows a narrow depression, the median fissure (sulcus medianus fossae rhomboideae), on either side of which the floor is raised into a low ridge, described as the medial eminence (eminentia medialis). The posterior end of the fossa forms with the enclosing wall the some- what triangu
. Bensley's Practical anatomy of the rabbit : an elementary laboratory text-book in mammalian anatomy. Rabbits -- Anatomy. 362 ANATOMY OF THE RABBIT ta -. (b) The rhomboid fossa (fossa rhomboldea) is the shallow depression enclosed by the thick lateral and anterior walls and floor of the ventricle. The middle line shows a narrow depression, the median fissure (sulcus medianus fossae rhomboideae), on either side of which the floor is raised into a low ridge, described as the medial eminence (eminentia medialis). The posterior end of the fossa forms with the enclosing wall the some- what triangular figure des- cribed as the calamus scrip- torius. (c) The lateral supports of the cerebellum, now represent- ed by their cut ends, are \ formed by fibre-bands con- ^^'^ necting the cerebellum with adjacent portions of the fc- brain. In each there are three main bands or ped- s uncles, though these cannot usually be distinguished in the cut surfaces. A middle peduncle, thebrachium pon- tis, represents the direct continuation of the pons in- to the cerebellum, bringing impulses to the latter from the cerebral cortex. An ante- rior band, the brachium conjunctivum, contains chiefly (not exclusively) fibres leading out of the cerebellum and running into the floor of the midbrain. A third band, the inferior cerebellar peduncle or restiform body (corpus restiforme), comes from behind as a thick ridge continuous with the dorsal part of the lateral funiculus of the spinal cord. It forms the lateral wall of the more caudal portion of the rhomboid fossa. Before turning dorsad into the cere- bellum it passes under a rounded elevation, the acoustic tubercle, where part of the auditory nerve ends. The restiform body conveys impulses from various centres in Fig. 122. The rhombencephalon. Dorsal view, after removal of the cerebellum; be, brachium conjunctivum; bp, brachium pontis; cl, clava; cli, inferior colliculus (mesencephalon); cr, restiform body; em, medial eminence; fc, fasciculus cu
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