. Anatomischer Anzeiger. Anatomy, Comparative; Anatomy, Comparative. vif+y/ii- Fig. Fig. 20. Between the ages of 22 hours and 33 hours I have a very close series of em- bryos in which the continuity of the neural segments, in the region of the medulla, is clearly established in both divided and dissec- ted specimens. I have also observed the disappearance of the five anterior seg- ments during this period of growth. The first three, or those of the fore- brain, disappear first. In Fig. 15 these segments (1, 2,3) are more clearly marked in the ven- tral zone of the brain Fig. 19. Encephalo
. Anatomischer Anzeiger. Anatomy, Comparative; Anatomy, Comparative. vif+y/ii- Fig. Fig. 20. Between the ages of 22 hours and 33 hours I have a very close series of em- bryos in which the continuity of the neural segments, in the region of the medulla, is clearly established in both divided and dissec- ted specimens. I have also observed the disappearance of the five anterior seg- ments during this period of growth. The first three, or those of the fore- brain, disappear first. In Fig. 15 these segments (1, 2,3) are more clearly marked in the ven- tral zone of the brain Fig. 19. Encephalon of a Cliick embryo , 50 hours old. Right profile view, e anterior limit of the hind-brain ; 6—11 its segments. Segment 6 the cerebellum. c anterior limit of the mid-brain; r anterior limit of the thalamencephalon; s dor- sal groove dividing the thalamencephalon; Ffifth cranial nerve; VII and VIII seventh and eighth cranial nerves. ^ 36 dia- meters. Fig. 20. Encephalon of a Chick embryo, 80 hours old. Right surface view. ep. epiphysis. Other letters and figures the same as in Fig. 19. ^ 19 Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Anatomische Gesellschaft. Jena : G. Fischer
Size: 1387px × 1802px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookpublisherjenagfischer, books
