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 . Fig. 36 Mesial view of forebrain reconstruction of chick of 5 days and 20hours. X 100. The unshaded area shows the cut surfaces of the reconstruction,according to Tilney, 1915. 2, chiasmatic process; 4, chiasm; 7, epiphysis; 13, infundibular process; 20,lamina terminalis; 25, mammillary region; 32, post-chiasmatic eminence; 33, post-chiasmatic recess; 36, post-infundibular eminenc
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 . Fig. 36 Mesial view of forebrain reconstruction of chick of 5 days and 20hours. X 100. The unshaded area shows the cut surfaces of the reconstruction,according to Tilney, 1915. 2, chiasmatic process; 4, chiasm; 7, epiphysis; 13, infundibular process; 20,lamina terminalis; 25, mammillary region; 32, post-chiasmatic eminence; 33, post-chiasmatic recess; 36, post-infundibular eminence; 38, pre-optic recess; 39, para-physis; 41, supra-optic crest; 42, supra-optic recess; 44, telencephalon; 45, tuber-culum postero-superius; 46, tubercle of the floor of Schulte. iO FREDERICK TILXEY AND LUTHER F. WARREN At this time the pineal region presents a well-marked para-physis, a velum transversum, and a dorsal sac. At the stage ofeight days in the chick a marked change is noticed, for at thisperiod of development the pineal anlage has the appearance of awide and expansive evagination in free communication with thethird ventricle. 39. Fig 37 Mesial view of forchrain reconstruction of chick of 8 days. X unshaded area shows the cut surfaces of the reconstruction, according toTilney. 2, chiasmatic process; 3, cerebellum; 4, chiasin; 7, epiphysis; !>. paraphysis: 41, supra-optic crest; 42, supra-optic recess;11, telencephalon. The brain of the chick at fourteen days and eighteen hoursshows a marked alteration in the pineal region, as a result ofwhich the development of the epiphysis seems to overshadow allother structures in this region. The walls of the evaginationwhich characterize the pineal organ in the eight-day chick havebecome greatly thickened near the distal extremity of the epi-physis so that no\v this portion of the o
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherphila, bookyear1919
