Appendix 2
The Development of the Unborn Child's Body





The thyroid gland begins to develop.
Day 20 after fertilization Moore, p5
The thyroid gland primordium first appears. Late in 4th week of development Larsen, p 249
The thyroid is developing. Late in 5th week Larsen, p 249
The thyroid gland, which plays a critical role in metabolism, begins developing. End of month 1 after conception Rugh, p 42
The thyroid is developing. Approximately day 36 Sadler, p 281


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