The Journal of experimental zoology . 186 Edwin G. Cofjklin. Quarter Embryos; Young Tadpole to Metamorphosis Stages. Fixed and Stained Preparations. Fig. 65. Left anterior and right posterior (diagonal) quarter embryos, dorsal view; spurted in the4-cell stage, fixed 5 hours later. The anterior quarter shows thickened ectoderm cells, probably neuralplate, around the endoderm cells; in the posterior quarter are 8 muscle and 3 caudal endoderm cells. Fig. 66. Left anterior and right posterior (diagonal) quarter embryos from the right anterior side,the dorsal pole being above; spurted in the 4-cell
The Journal of experimental zoology . 186 Edwin G. Cofjklin. Quarter Embryos; Young Tadpole to Metamorphosis Stages. Fixed and Stained Preparations. Fig. 65. Left anterior and right posterior (diagonal) quarter embryos, dorsal view; spurted in the4-cell stage, fixed 5 hours later. The anterior quarter shows thickened ectoderm cells, probably neuralplate, around the endoderm cells; in the posterior quarter are 8 muscle and 3 caudal endoderm cells. Fig. 66. Left anterior and right posterior (diagonal) quarter embryos from the right anterior side,the dorsal pole being above; spurted in the 4-cell stage, fixed 22 hours later. In the posterior quarterthe muscle and mesenchyme cells form a solid mass; in the anterior quarter the chorda cells projectfreely over the dorsal surface and the neural plate is partially infolded and contains three sense spots. Fig. 67. Right anterior and left posterior (diagonal) quarter embryos, dorsal view; spurted in4-cell stage, fixed 22 hours later. Fig. 68. Left anterior and right posterior (diag
Size: 2228px × 1122px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorwi, bookcentury1900, bookdecade1900, booksubjectzoology
