|
Tenth Week
|
Timing
|
Source |
The eyelids are closed.
|
10th week after fertilization |
Moore, p 238 |
| The intestines are developing in the
abdomen. |
10th week after fertiliztaion |
Moore, p 109; Williams, p 155 |
| The fingernails are present. |
10th week after fertilization |
England, p 173 |
| Stretching an arm is frequently accompanied
by extending the fingers. |
From 10th week after conception |
de Vries (1982), p 307 |
| Finger movements first occur. |
10th week after conception |
Nijhuis/de Vries, p 5 |
| Opening and closing one or more fingers
can be seen. |
10th week after conception |
Nijhuis/de Vries, p 6 |
| Hand-to-face contacts were observed
in 12 of 12 fetuses studied with a median frequency
of about 25 contact per hour. |
10th week after conception |
de Vries (1985), p 113 |
| Jaw openings were observed in 10 of
12 fetuses studied with a median rate of about 18
per hour. |
10th week after conception |
de Vries (1985), p 114 |
| The most common movement patterns
have emerged. |
10th week after conception |
de Vries (1988), p 87 |
|
Fingernails begin to develop at the end of the
digits.
|
About 10th week after fertilization |
Moore, p 519 |
| Fingernail anlagen first appear. |
About 10th week |
Larsen, p 311 |
| The tooth buds for permanent teeth
begin to appear. |
About 10th week after fertilization |
Moore, p 523 |
| Toenails begin to develop at the tips
of the digits. |
About 10th week after fertilization |
Moore, p 519 |
| Sucking first occurs. |
10 1/2 - 12 1/2 weeks after conception |
Nijhuis/de Vries, p 5 |
| Swallowing first occurs. |
10 1/2 - 12 1/2 weeks after conception |
Nijhuis/de Vries, p 5 |
| Fingernails are present. |
End of 10th week after fertilization |
Williams, p 154 |
| The fingers are differentiated. |
End of 10th week after fertilization |
Williams, p 154 |
| Scattered rudiments of hair appear. |
End of 10th week after fertilization |
Williams, p 154 |
| External genitalia are starting to
indicate whether the fetus will be male or female. |
End of 10th week after fertilization |
Williams p 154 |
| The toes are differentiated. |
End of 10th week after fertiliztaion
|
Williams, p 154 |
| Toenails are forming. |
End of 10th week after fertilization |
Williams, p 154 |
| The prostate and seminal vesicles
develop in males. |
10th - 13th weeks |
Larsen, p 175 |
| The fetus responds to sound. |
10th - 14th weeks after conception |
Nijhuis/Hepper, p 133 |
| |
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