302 



PRACTICAL ANATOMY. 



open gray capsule, called the corpus dentatum. It con- 

 sists of two symmetrical hemispheres joined together by 

 a central constricted commissural portion. The upper 

 surface is flattened, slightly convex, and presents two 

 lobes, a large anterior, the quadrate, and a narrower 

 portion, the semilunar. Along the median line is the 

 transverse commissure called the superior vermiform 

 process, which begins at the anterior notch and termi- 

 nates at the posterior notch of the cerebellum. Three 

 slight eminences along the superior vermiform process 



Fro. 133. THE CEREBELLUM, INFERIOR SURFACE. 



have received names. They are the central, anterior, and 

 posterior lobes. The inferior surface of the cerebellum 

 is irregular and uneven. Each hemisphere presents four 

 lobes, the tonsillar, digastric, slender, and posterior in- 

 ferior. The inferior vermiform process is depressed, and 

 presents from behind forward the short commissure, 

 the pyramid, the uvula, the nodule, and arching outward 

 from each side of the nodule is a lamina of white matter 

 called the velum. At each extremity of the velum is the 

 flocculus, a group of miniature convolutions. The 



