Fig. 11-4 from O'Rahilly and Müller, 1987 shows the distribution of the coelom in embryo 6344. At three representative levels the surfaces are exposed schematically, showing the relationship between the coelomic channel and the mesoblast or heart.
Keywords: amnion, coelom, coelomic channel, otic disc, somite 12 (C-8), somite 2 (O-2), somite 5 (C-1), umbilical artery, umbilical vein, umbilical vesicle
Source: The Virtual Human Embryo.