Image Gallery
Close-up, Seven-Week Heart
![Close-up, Seven-Week Heart [Click for next image]](/images/prenatal_numbered_655/close-up-seven-week-heart.jpg "Click for next image")
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Note:The average heart rate peaks around seven weeks after fertilization.Label Key:1. heart 2. liver | ||
| All ages referenced to fertilization, not last menstrual period. |
The Heart and Brain
Left Hand and Left Eye
Close-up, Seven-Week Heart
The Four-Chambered Heart
The Heart
The Heart and Chest
