Dept.ofAnatomyZhouHongYing,Internalstructuresofbrainstem,greymatterwhitematterreticularformation,Reviewtheexternalstructuresofbrainstem,1.ImportantmarksPyramidsunderlyingpyramidal(corticospinaltract)DecussationofpyramidsOlivewithininferiorolivarynucleusGraciletubercle-fasciculusgracilisandnucleusCuneatetuberclefasciculuscuneatusandnucleuscuneatusConvexofpontransversepontinefiber-pontocerebellarfibersmiddlecerebellarpeduncleFacialcolliculusabducensnucleusandfibersoffacialnerve2.CNIIIXII
