Appendix 1
The Chronological Development of The Unborn Child

 

Sixteenth Week

 

Timing

 Source
Bones are clearly visible in ultrasound images.
Beginning of the 16th week after fertilization Moore, p 112
The ears stand out from the head. 16th week after fertilization Williams, p 155; Moore, p 109
The ovaries are differentiated. 16th week after fertilization Moore, p 112 & p 113
The appearance is human. The eyes face anteriorly. The ears have almost reached their final position on the sides of the head. 16th week after fertilization Moore, p 113
Fine palm lines have formed, which can be used to permanently identify the fetus. Finger, palm, and footprints are never duplicated among individuals. 4th month Rugh, p 217


 


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