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Median reconstruction

The median reconstruction of No. 7802 stage 7 is based on a drawing by James F. Didusch (Heuser et al., 1945, Plate 6). A section of the allantoic diverticulum appears detached because that structure is not entirely in the median plane. The figure references are to the sections reproduced by Heuser et al., 1945, Plates 4 and 5.

Fig. 7-4. O'Rahilly and Müller, 1987.

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Keywords: allantoic diverticulum, amniotic duct, cloacal membrane, endoderm, epiblast, gastrulation (primitive) node, gastrulation (primitive) streak, notochordal process

Source: The Virtual Human Embryo.