michaelm@bcsaic.UUCP (michael b maxwell) (09/11/85)
In the gastrula, do the ectoderm, mesoderm and endoderm actually look and/or stain differently? Or are they just presumptively different? -- Mike Maxwell Any wrong opinions expressed in the above are someone elses fault.
friesen@psivax.UUCP (Stanley Friesen) (09/17/85)
In article <287@bcsaic.UUCP> michaelm@bcsaic.UUCP (michael b maxwell) writes: >In the gastrula, do the ectoderm, mesoderm and endoderm actually look >and/or stain differently? Or are they just presumptively different? In what organism? The answer varies quite a bit depending on which animal you are talking about. In Humans I believe they look quite different. Endoderm is composed of a layer of smallish angular cells, ectoderm is a layer of larger, less angular cells, and mesoderm is originally an irregular network of more or less amoeboid cells. -- Sarima (Stanley Friesen) UUCP: {ttidca|ihnp4|sdcrdcf|quad1|nrcvax|bellcore|logico}!psivax!friesen ARPA: ttidca!psivax!friesen@rand-unix.arpa