Text Appearing Before Image: PRE-CHORDAL .PLATE\ NEURAL PLATE ECTODERM iL ECTODERM YOLK SAC Text Appearing After Image: Fig. 207. Three-germ-layer late gastrula of human embryo (pre-somite stage, after Heuser: Contrib. to Embryo). Carnegie Inst., Washington, Publ. 138, 23: 1932). (A) Dorsal view of embryonic disc, amnion removed. (B) Sagittal section through median area of (A). Observe elongated notochordal canal. (C-G) Transverse sections as indicated
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