Appendix 2
The Development of the Unborn Child's Body
Lips
|
Timing
|
Source |
The upper and lower lips are forming.
|
Early in 6th week after fertilization |
Moore, p 523 |
The upper lip is forming. |
Days 43-49 of development |
Sadler, p 110 |
The upper and lower lips are forming. |
9th week |
Sadler, p 376 |
|