HEAD AND ANTERIOR CERVICAL STRUCTURES. 55 



The Epencephalon, 753-760. (73 6 ~743) 

 Dissection. 



Cerebellum : 



Superior vermiform process. Valeculecula. Incisura marsupialis. 

 Folia. Fissures. 

 Peduncles : 

 Superior. 

 Middle. 

 Inferior. 



Great horizontal fissure. 

 Superior surface of the cerebellum. 

 Superior vermiform process. 

 Sulcus cerebelli superior. 

 Quadrate lobe. 



Anterior crescentic. 

 Posterior crescentic portion. 

 Posterior superior lobe. 

 Superior vermiform process : 



Lobus centralis. Alae. Lingula. 

 Monticulus cerebelli : 

 Culmen. 

 Declive. 



Folium cacuminis. 

 Inferior surface of the cerebellum. 

 Lobes: Posterior inferior. 

 Slender. 

 Biventral. 

 Tonsillar lobe. 

 Flocculus. 



Inferior vermiform process : 

 Tuber valvulae. 

 Pyramid. 



Uvula. Furrowed band. 

 Nodule, or laminated tubercle. Inferior medullary velum. 



Dissection. 



White matter of the cerebellum. 

 Arbor vitae : 



Vertical branch. 

 Horizontal branch. 



Gray matter in the interior of the cerebellum. 

 Nucleus emboliformis. 

 Nucleus globosus. 

 Nucleus fastigii. 

 Fourth ventricle. 



Roof: Valve of Vieussens, or superior medullary velum. 

 Inferior medullary vela, commissurae ad flocculos. 

 Choroid plexuses. 

 Tela choroidea inferior. 

 Obex. 

 Ligulae. 

 Floor of the fourth ventricle. 



Sulcus longitudinalis medianus. Ventricle of Arantius. 

 Striae medullares or striae acusticae. 

 Posterior moiety of the floor. 



Fovea inferior or posterior. Ala cinerea, trigonum vagi. 

 Trigonum hypoglossi. 

 Tuberculum acusticum. 



