146 



ELEMENTS OF HISTOLOGY. [Chap.xvn. 



Fig. 89. Transverse Section through the Medulla Oblongata in the 



Region of the Fourth Ventricle. 

 fpy, Anterior pyramidal tract ; /r, restiforra bodies; np, nucleus of pyramids; 



no olivary nucleus ; na, accessory olivary nucleus; nh, nucleus of liypo- 



glossal nerve: nv, nucleus of vagus; ngl, nucleus of glosso-pbaryugeus; 



r.raphe; 9, lo s sdplaaryugeal nerve; 12, hypogiossal nerve; y, horizontal 



fibres. (.Henle.) 



