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File:Amphibia formation of the neural tube, notochord, mesoderm, and coelom in vertebrates. cross-sections..jpg

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Description Fig. 7.—Diagrams to show the formation of the neural tube, notochord, mesoderm, and coelom in vertebrates, based on Amphibia. Cross-sections. A, differentiation of the notochord f in the roof of the entoderm (endoderm); mesodermal plates b spreading ventrally. B, neural folds h rising at the sides of the medullary plate g; notochord f separated from the entoderm; mesodermal plates b extended farther ventrally and developing a central cavity, the coelom i. C, neural folds h nearly closed to form the neural tube j; mesodermal plates have reached the midventral line; coelomic split i has extended ventrally. a, ectoderm; b, mesoderm; c, entoderm or archenteron; d, somatic mesoderm; e, splanchnic mesoderm; f, notochord; g, medullary plate; h, neural fold; i, coelom; j, neural tube. (A from Hertwig-Mark’s Textbook of the Embryology of fan and Mammals, courtesy of the Macmillan Company.)
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Source https://archive.org/details/cu31924021952902/page/38/mode/1up?view=theater A laboratory manual for comparative vertebrate anatomy
Author Hyman, Libbie Henrietta, 1888-1969

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current19:24, 13 March 2024Thumbnail for version as of 19:24, 13 March 20241,777 × 712 (592 KB)Rasbak (talk | contribs){{Information |description=Fig. 7.—Diagrams to show the formation of the neural tube, notochord, mesoderm, and coelom in vertebrates, based on Amphibia. Cross-sections. A, differentiation of the notochord f in the roof of the entoderm (endoderm); mesodermal plates b spreading ventrally. B, neural folds h rising at the sides of the medullary plate g; notochord f separated from the entoderm; mesodermal plates b extended farther ventrally and developing a central cavity, the coelom i. C, neural...

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