626 



PHYSIOLOGY. 



27 



Fig. 241. Metencephalon, Mesencephalon, and Thalamencephalon, 

 from the Dorsal Surface. ( GORDINIEI?, after OBERSTEINER.) 



1, Anterior ccrnu cf lateral ventricle. 2, Fifth ventricle. 3, Septum luci- 

 dum. 4, Anterior pillars of fornix. 5, Taenia semicircularis. 6, Anterior com- 

 missure. 7, Third ventricle. 8, Middle commissure. 9, Sulcus choroideus. 10, 

 Nates. 11, Corpus geniculatum internum. 12, Lateral groove of mesencepha- 

 lon. 13, Pons. 14, Conductor sonorus. 15, Sulcus longitudinalis medianus. 

 16, Trigonum hypoglossi. 17, Corpus restiforme. 18, Clava. 19, Posterior fis- 

 sure. 20, Sulcus paramedianus dorsalis. 21, Sulcus lateralis dorsalis. 22, Lateral 

 column. 23, Funiculus cuneatus. 24, Funiculus gracilis. 25, Tuberculum cuno- 

 atum. 26, Ala cinerea. 27, Tuberculum acusticum. 28, Eminentia teres. 29, 

 Lingula. 30, Frenulum veli. 31, Testis. 32, Sulcus corp. quad, longitudinalis. 

 33, Pineal body. 34, Pedunculus conarii. 35, Stria pinealis. 36, Optic thala- 

 mus. 37, Foramen of Monro. 38, Caudate nucleus. 39, Corpus Callosum. 



