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Figure 6-30.
The mature medaka heart as observed using a dissecting microscope. After fixation with 4% paraformaldehyde, the body was opened carefully (A and B show different angles), and the whole heart was dissected from the body (C). a, atrium; G, gill; L, liver; V, ventricle; c, conus arteriosus; s, sinus venosus. Scale bars, 0.5 mm.