. The Journal of comparative neurology and psychology. this way the preoral entoderm is pushed back and the hypophysisinsinuates itself between the entoderm and the posterior wall of theprimitive optic groove as in Squalus. The preoral entoderm be-comes shorter and blunter, but none of it is cut off as in Squalus. 494 Journal of Comparative Neurology and Psychology. The only important difference between Amblystoma and Squalus isthat anterior head cavities are not formed in Amblystoma. In laterstages the preoral entoderm and median mass proliferate as mesen-chyme, so that essentially t
. The Journal of comparative neurology and psychology. this way the preoral entoderm is pushed back and the hypophysisinsinuates itself between the entoderm and the posterior wall of theprimitive optic groove as in Squalus. The preoral entoderm be-comes shorter and blunter, but none of it is cut off as in Squalus. 494 Journal of Comparative Neurology and Psychology. The only important difference between Amblystoma and Squalus isthat anterior head cavities are not formed in Amblystoma. In laterstages the preoral entoderm and median mass proliferate as mesen-chyme, so that essentially the same end is reached as in some embryos are found indications of a connection of thearchentoderm with the hypophysis through the preoral entoderm,but this and the details of the formation of the hypophysis will bedescribed in another paper. As development proceeds the same shifting in the relations of theoptic vesicles is seen as has been described in Squalus. In the lateralwall of the forebrain vesicle a thickening is formed which runs.
Size: 1376px × 1816px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorwistarinstituteofanat, bookcentury1900, bookdecade1900
