|
Fingers
|
Timing
|
Source |
The primordia of the fingers, called
digital rays, start to develop.
|
6th wek after fertilization |
Moore, p 94 |
| Finger rays are visible. |
Day 38 of development |
Larsen, p 209 |
| Finger rays are developing. |
Day 38 after fertilization |
Sadler, front pages |
| The rudiments of the fingers become
evident. |
Day 42 after conception |
Rugh, p 47 |
| The fingers are developing. |
Day 43 after fertilization |
Sadler, front pages |
| Thumbs and fingers with pads are present. |
7th week after conception |
Rugh, p 44 |
| All the fingers are present. |
7th week after conception |
Rugh, p 52 |
| The fingers are separated. |
About day 52 after fertilization |
Moore, p 100 |
| The fingers are free. |
Days 50-56 |
Sadler, p 110 |
| The fingers are free and longer. |
Days 52-53 after fertilization |
Moore, p 91 |
| The fingers of both hands are usually
found close to the nose. |
Day 56 after conception |
Rugh, p 53 |
| Local stimuli may induce partial closing
of the fingers. |
8th week after fertilization |
Williams, p 169 |
| The fingers are differentiated. |
End of 10th week after fertilization |
Williams, p 154 |
