Identify the structures of the four week old human embryo by selecting the most appropriate letter.
Click on the box beside the number to select from the list of choices.
1.
a
b
c
d
e
f
g
h
2.
a
b
c
d
e
f
g
h
3.
a
b
c
d
e
f
g
h
4.
a
b
c
d
e
f
g
h
5.
a
b
c
d
e
f
g
h
a.
b.
c.
d.
e.
f.
g.
h.
Maxillary process
Eye
Hyoid arch
Olfactory pit
Mandibular arch
Third arch
Yolk stalk
Heart