90 



LECTURES ON THE CENTRAL NERVOUS SYSTEM. 



far into the substance of the thalamus and gives off a great 

 many roots to the optic tract. 



Externally, the thalamus borders on the internal capsule 

 (Fig, 52). Numerous bundles pass from the latter into the 



Fia. 52. 



Frontal section through the brain in front of the section shown in Fig. 49, just behind 



tlie chiasm. (Diagrammatic.) 



Stabkranz zum Thalamus, Coronal tract to the 



thalamus. 

 Vntfrer Tliiilamus Stiehl, Inf. pedicle of 



thalamus. 

 Zur Schlei/e, To the fillet. 



Centr. Uohlentjrau, Central (ventricular) gray 



matter. 



GUternr.hicht, Latticed layer. 

 Jfitulienfaserung, Fibres to the tegmentum. 

 Linn. K.Schlinge, Ansa lenticularis. 



former. They come from different directions, and cross each 

 other on entering the thalamus. In this net-work of decus- 

 sating fibres are found small aggregations of gray matter. The 

 outer zone of these crossed fibres is called the latticed layer. 



