The morphology and evolutional significance of the pineal body : being part I of a contribution to the study of the epiphysis cerebri with an interpretation of the morphological, physiological and clinical evidence . and a para-pineal organ. Both of these lie in close apposition to each otherextending cephalodorsad in such a direction that their terminalportions come to overlie the dorsal sac. The dorsal wall of thepineal organ lies immediately beneath the frontal region of theskull. The posterior intercalated portion is also absent, but alarge posterior commissure occurs in all forms. The pin
The morphology and evolutional significance of the pineal body : being part I of a contribution to the study of the epiphysis cerebri with an interpretation of the morphological, physiological and clinical evidence . and a para-pineal organ. Both of these lie in close apposition to each otherextending cephalodorsad in such a direction that their terminalportions come to overlie the dorsal sac. The dorsal wall of thepineal organ lies immediately beneath the frontal region of theskull. The posterior intercalated portion is also absent, but alarge posterior commissure occurs in all forms. The pineal, aswell as the parapineal organ, possesses a nerve, that connected LL FREDERICK TILNKV AM) LUTHER F. WARREN with the pineal organ, the so-called pineal nerve, ends in thepo-terior commissure, while the p;ir;ii)ineal nerve has its termi-nation ni the commissura habenularis. Probably the first observation upon this region in the cyclo-stomes was made by Serres3-3 in 1S25. Other contributions fol-lowed by Schlemm and dAlton 347f in 1838. Johannas Miiller-0in ls:;s and Siebold and Stannius3:>:> in 1854 added their studiesof this region. Mayer-1-1 in 1S(>4 mentioned the occurrence of EpuL Cor Po Schd. 1 Schematization . L«., lamina terminalia; //. ; //»., para pineal oi^an :/«., pineal ; Efa.,habenular ganglion; Th., aervejCA., commissura lialicnulari^; // .recessus pincalis; (/>., posterior; «., Xfiin., norvus pim-alis. calcium corpuscles in and about the pineal origin. Wie-dcrsheini1-- in 1880 spoke of the epiphysis as a, small, saccularbody, hut it was not until 1883 that Ahlborn- first described themicroscopic of this. THE PINEAL BODY 23 Later, Beard (87)17 and Owsiannikow (88)295 following Ahl-horns lead, both spoke of two epiphyseal vesicles. Studnicka(99)388 and Kupffer (94)224 showemorphologyevolut00tiln
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherphila, bookyear1919
