Identifier: journalofcompara23wist (find matches)
Title: Journal of comparative neurology
Year: 1913 (1910s)
Authors: Wistar Institute of Anatomy and Biology
Subjects: Neurology Comparative neurobiology Neurology Medicine
Publisher: Philadelphia, Pa. : Wistar Institute of Anatomy and Biology
Contributing Library: MBLWHOI Library
Digitizing Sponsor: MBLWHOI Library

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passing through the interventricular foramen and decussationof the optic tracts. Fig. 6 Section passing through the primordium hippocampi and lobus subhip-pocampalis a short distance behind the interventricular foramen. The laminaof cells representing the primordial corpus striatum (c.s.) is extensively developed,though for the most part it is withdrawn from the ventricular surface. Fig. 7 Section passing through the caudal end of the chiasma ridge. On theright side it passes through the habenula and eminentia fimbriae; on the left sidethrough the caudal end of the primordium hippocampi. The cellular elementsof the eminentia thalami (em. th.) are well developed between the sulcus mediusand the sulcus intermedius. Between this region and the eminentia fimbriae isan area containing fibers of the stria medullaris and poor in cells, which shouldprobably be associated with the lobus subhabenularis. Fig. 8 Section through the middle of the right habenula and the rostral partof the thalamus.
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A.lijSiillda^T^ dif. f 673 674 C. JUDSON HERRICK AND JEANNETTE B. OBENCHAIN Fig. 9 Section through the thiilamus three sections (45 m) farther caudad thanfigure 8 and passing through the common vertical ridge formed by the medial andventral lobes of the thalamus. Fig. 10 Section through the rostral end of the tuberculum posterius. Theletters s.l. mark the position of the sulcus limitans, which appears clearly defineda few sections farther caudad. The elements of the cell plate below this levelare somewhat larger and more loosely arranged than those above it. Fig. 11 Section through the posterior commissure and the caudal end of therecessus mammillaris. Fig. 12 Section through the midbrain immediately in front of the commissuraposterior tecti, illustrating the characteristic internal structure at the site of thesulcus limitans, through the sulcus itself is not evident on the ventricular sur-face (cf. fig. 3). ANATOMY OF A CYCLOSTOME BRAIN 675

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