Week
|
Carnegie Stage
|
Event
|
week 4 GA 6
|
11
|
nasal epiblastic thickening appears
|
|
12
|
nasal field is well outlined
|
week 5 GA 7
|
15
|
continuous cellulovascular strand seen between the nasal groove and the olfactory field
|
week 6 GA 8
|
16
|
vomeronasal groove appears at stage (O'Rahilly 1967).
|
|
17
|
olfactory nerve is organized into two plexuses, lateral and medial, the latter mingled with the terminal-vomeronasal complex.
|
week 7 GA 9
|
18
|
olfactory bulb begins to appear
|
|
19
|
individualization of the olfactory bulb and nuclei. Distinction between olfactory structures and terminal and vomeronasal ones begins to be clear
|
week 8 GA 10
|
21
|
structure of the olfactory bulb is evident.
|
|
23
|
olfactory strands are well individualized, and olfactory and terminal-vomeronasal fibers are easily distinguishable.
|
Data[1]
|
|