|
Nose
|
Timing
|
Source |
Nasal placodes - the primordia of
the nose and the nasal cavities - have developed.
|
End of 4th week after fertilization |
Moore, p 239 |
| Nasal placodes are present. |
Day 30 after fertilization |
Sadler, front pages |
| The nasal pits, which are the primordia
of the nostrils and the nasal cavaties, are forming. |
Day 30 after fertilization |
Moore, p 5 & p 239 |
| The nasal organs have started to form. |
Day 30 after conception |
Rugh, p 41 |
| The nasal pits are visible. |
Days 31-32 after fertilization |
Moore, p 91 |
| The nasal pits are formed. |
Days 31-35 of development |
Sadler, p 110 |
| The nasal pits deepen to form the
nasal cavity. |
Days 35-42 |
Larsen, p 230 |
| The nostrils are developing. |
Day 40 after fertilization |
Moore, p 238 |
| The nose is formed. |
Day 38 after fertilization |
Moore, p 5 |
| The nose is forming. |
During the 2nd month |
Sadler, p 106 |
| The nasal passages open to the outside. |
Day 46 after conception |
Rugh, p 51 |
| The nasal chamber is developing. |
7th week |
Sadler, p 376 |
| The nose is stubby. |
About day 52 after fertilization |
Moore, p 100 |
