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. Author manuscript; available in PMC: 2012 Aug 3.
Published in final edited form as: Circulation. 2009 Jul 28;120(4):343–351. doi: 10.1161/CIRCULATIONAHA.108.796698

Figure 7. Summary of Human Cardiac Developmental Milestones.

Figure 7

Major cardiac developmental structures present in EGA 6 4/7 weeks to 7 5/7 weeks (CS13–17) embryos are summarized in Figure 7, while Figure 8 shows the major developmental structures present in EGA 8 weeks to 9 3/7 weeks (CS18–23) embryos. One can look at a developmental structure at a specific estimated gestational age to determine what normal development is for that structure at that age in human cardiac development. The compass orients the observer to the plane of section.