View
223
Download
0
Category
Preview:
Citation preview
Slides: Implantation and
Embryonic & Fetal Development
1
pronuclei
Zona
2
Zona
Polar Body
Blastomere
3
Zona
Blastomeres
4
Zona
Blastomeresearly blastocyst
‘hatching’ from zona
Zona degrading
5
Inner Cell Mass
Trophoblast
Blastocyst
6
uterine gland endometrium
implanting conceptus
7
syncytio-trophoblast
lacunae
embryonic disc
8lacunar network amnion embryonic disc
yolk sac
cytotrophoblast
9lacunar network amnionembryonic disc
yolk sac
chorion
10intervillous space = lacunar network
connecting stalkembryonic disc
yolk sac
chorionchorionic villi
11
epiblast
mesoderm
endoderm
The Embryonic Disc
12
primitive streak
connecting stalk
embryonic disc
yolk sac
chorion
13
amnion
ectoderm
endoderm notochord
mesoderm
14
brain
connecting stalk
umbilical cord
somites
yolk sac chorion
heartpharynx
15
umbilical cord
amnion
forebrain
yolk sac
heart
pharyngeal arches
somites
16
apical ectodermal ridge (AER)
Limb bud
limb mesoderm
17
umbilical cord
amnion
yolk sac chorionic villi
18
amnion
umbilical cord
umbilical hernia: intestines
Crown-Rump length
30 mm = 1.25 inch
19Placenta = villous chorion amnionsmooth chorion
Crown-Rump length: 93 mm = 3.5 inches
Recommended