Quicktime Development Animation - Week 3 - Revision history

Z8600021 at 05:25, 2 March 2013

2013-03-02T05:25:07Z

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 * red - outside embryo extraembryonic mesoderm and inside embryo mesoderm
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Z8600021: Redirected page to Week 3 Development Movie

2013-03-02T05:24:43Z

Redirected page to Week 3 Development Movie

← Older revision		Revision as of 15:24, 2 March 2013
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			#REDIRECT [[Week 3 Development Movie]]
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Z8600021 at 09:03, 26 February 2013

2013-02-26T09:03:08Z

← Older revision		Revision as of 19:03, 26 February 2013
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S8600021 at 06:57, 14 August 2010

2010-08-14T06:57:35Z

← Older revision		Revision as of 16:57, 14 August 2010
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	\|<~~wikiflv~~ width=~~"388"~~ height=~~"500" autoplay~~="true~~">Week3_folding.flv~~\|~~Week3_folding icon.jpg~~</~~wikiflv~~>		\| <qt>file=Week3_folding.mov‎\|width=388px\|height=520px\|controller=true\|autoplay=false</qt>
	\| This animation shows folding of the embryonic disc beginning week 3 of development.		\| This animation shows folding of the embryonic disc beginning week 3 of development.

S8600021: Created page with '{| |- |Week3_folding.flv|Week3_folding icon.jpg | This animation shows folding of the embryonic disc beginning week 3 …'

2010-08-14T04:21:23Z

Created page with '{| |- |<wikiflv width="388" height="500" autoplay="true">Week3_folding.flv|Week3_folding icon.jpg</wikiflv> | This animation shows folding of the embryonic disc beginning week 3 …'

New page

{|
|-
|<wikiflv width="388" height="500" autoplay="true">Week3_folding.flv|Week3_folding icon.jpg</wikiflv>
| This animation shows folding of the embryonic disc beginning week 3 of development.

Embryonic disc (midline section) shown to the left and early placenta to the right. The embryonic disc dorsal (ectoderm) top and ventral (endoderm) bottom. Cranial end of disc to the left and caudal end of disc to the right.

Note also the early cardiac region shown at the cranial end of disc and the [[A#allantois|allantois]] at the caudal end of disc extending into the [[C#connecting stalk|connecting stalk]].

Folding of the embryonic disc
# brings the cardiac region and [[A#allantois|allantois]] ventrally
# brings the [[B#buccopharyngeal membrane|buccopharyngeal membrane]], [[C#cloacal membrane|cloacal membrane]] and connecting stalk ventrally
# encloses the embryo in amniotic cavity
# narrows the connection between yolk sac and midgut of the gastrointestinal tract to a channel, the [[Y#yolk stalk|yolk stalk]] or [[V#vitelline duct|vitelline duct]]

* blue - epiblast layer of amniotic cavity
* yellow - endoderm layer of the yolk sac and gastrointestinal tract
* red - outside embryo extraembryonic mesoderm and inside embryo mesoderm

Compare this sectional view of folding with the [[Development Animation - Amniotic Cavity|Amniotic Cavity]] view, filling the amnion and yolk cavities.

[[File:Amnion 001 icon.jpg|90px|link=Development Animation - Amniotic Cavity]]

[[Media:Week3_folding.mov|Quicktime version]]
|-
|}

{{Template:Quicktime}}

[[Category:Week 3]]