File:Caudata process of invagination and mesoderm-formation.jpg

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Description Fig. 4. Diagrams showing the process of invagination and mesoderm-formation in Urodeles. Each diagram is a median sagittal section on to which the mesoderm of one side has been projected, a, Early stage ; the dorsal lip is well advanced, the ventral lip barely indicated, the sheet of mesoderm is beginning to spread forwards from the dorsal and lateral lips. b,The tip of the notochord (Ch) is growing forwards beneath the neural plate ; the edge of the mesoderm sheet (p) has extended further forward ; a small blastocoel (F) is still visible ; K, the front of the neural plate, c, d, Further stages ; mesoderm is growing in at the ventral lip ; the mesodermal sheet has extended forwards and downwards, and leaves only a small area unoccupied. The paired rudiments of the heart are situated near the growing edge of the mesodermal sheet on each side. (From Vogt, Arch. Entwmech. cxx, 1929.)
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Source https://archive.org/details/elementsofexperi00huxl/page/19/mode/1up?view=theater&q=archenteron The elements of experimental embryology. New York [Hafner Pub. Co.]
Author Huxley, Julian, De Beer, Gavin, Sir.

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current22:19, 14 March 2024Thumbnail for version as of 22:19, 14 March 2024805 × 823 (698 KB)Rasbak (talk | contribs){{Information |description=Fig. 4. Diagrams showing the process of invagination and mesoderm-formation in Urodeles. Each diagram is a median sagittal section on to which the mesoderm of one side has been projected, a, Early stage ; the dorsal lip is well advanced, the ventral lip barely indicated, the sheet of mesoderm is beginning to spread forwards from the dorsal and lateral lips. &,The tip of the notochord {Ch) is growing forwards beneath the neural plate ; the edge of the mesoderm sheet...

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