File:Stage7 bf5.jpg: Difference between revisions

Latest revision as of 14:56, 9 September 2014

Human Embryo Stage 7

Appearance of section through implanted conceptus appears to be about a Carnegie stage 7 embryo. Photo author states similar to the Hertig-Rock embryo (1945) dated as 16.5 to 19 days post-ovulation, or GA Week 4 to 5 week.

Carnegie stage 7

Features: embryonic disc, primitive node, primative streak, primitive groove, yolk sac
Facts: Week 3, 15 - 17 days, 0.4 mm
View: embryonic disc and chorionic vesicle.
Events: Gastrulation is continuing as cells migrate from the epiblast, continuing to form mesoderm.

Stage 7 - Implanted Conceptus

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Stage 7 | Embryo Slides

Carnegie Stages: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | About Stages | Timeline

Image: Dr Ed Uthman (Houston, Texas) - other pathology images - CC BY 2.0

Cite this page: Hill, M.A. (2024, May 17) Embryology Stage7 bf5.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Stage7_bf5.jpg

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	14:43, 21 July 2010		1,712 × 1,206 (875 KB)	S8600021 (talk \| contribs)	==Human embryo - 3 week== Appearance of section looks to be about a Carnegie stage 7 embryo. Original Author Legend - Primitive Trilaminar Human Embryo in Tubal Pregnancy (40X) :"I think this is at about the same developmental stage as the Hertig-Roc

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Camera manufacturer	NIKON
Camera model	E995
Exposure time	5/1,587 sec (0.0031505986137366)
F Number	f/4.2
ISO speed rating	100
Date and time of data generation	12:26, 22 September 2009
Lens focal length	8.2 mm
Orientation	0
Horizontal resolution	300 dpi
Vertical resolution	300 dpi
Software used	Picasa 3.0
File change date and time	12:26, 22 September 2009
Y and C positioning	Co-sited
Exposure Programme	Normal programme
Exif version	2.1
Date and time of digitising	12:26, 22 September 2009
Meaning of each component	Y Cb Cr does not exist
Image compression mode	4
APEX exposure bias	0.7
Maximum land aperture	0 APEX (f/1)
Metering mode	Pattern
Light source	Unknown
Flash	Flash did not fire
Supported Flashpix version	1
Colour space	Uncalibrated
File source	Digital still camera
Scene type	A directly photographed image
Unique image ID	50598a4a1588e99108cec44cb34f435e

@@ Line 1: / Line 1: @@
-==Human embryo - 3 week==
+==Human Embryo Stage 7==
-Appearance of section looks to be about a [[Carnegie stage 7]] embryo.
+{|
+| Appearance of section through implanted conceptus appears to be about a [[Carnegie stage 7]] embryo. Photo author states similar to the Hertig-Rock embryo (1945) dated as 16.5 to 19 days post-ovulation, or {{GA}} Week 4 to 5 week.
-Original Author Legend - Primitive Trilaminar Human Embryo in Tubal Pregnancy (40X)
+[[Carnegie stage 7]]
-:"I think this is at about the same developmental stage as the Hertig-Rock embryo of 1945, which has been variously estimated at 16.5 or 19 days postovulation (4 to 5 weeks by conventional obstetrical dating, counting from the first day of the last menstrual period)."
+* Features: embryonic disc, primitive node, primative streak, primitive groove, yolk sac
+* Facts: Week 3, 15 - 17 days, 0.4 mm
+* View: embryonic disc and chorionic vesicle.
+* Events: Gastrulation is continuing as cells migrate from the epiblast, continuing to form mesoderm.
+| {{SlideStage7bf5}}
+|}
-Original file name: 3944578509_bd228ca576_o.jpg
+{{Stage7 bf5 links}}
-http://www.flickr.com/photos/euthman/3944578509/
-Uploaded to Flickr on September 22, 2009 by Ed Uthman Image (pathologist in Houston, Texas)
-http://creativecommons.org/licenses/by/2.0/
-'''Image version links:''' [[:File:Stage7 bf5.jpg|ExtraLarge 1712x1206px]] | [[:File:Stage7 bf5a.jpg|Large 1024x721px]] | [[:File:Stage7 bf5b.jpg|Medium 500x352px]] | [[:File:Stage7 bf5c.jpg|Small 240x169px]]
-== Human Embryo Stage 7 Information==
-Carnegie stage 7
-Features: embryonic disc, primitive node, primative streak, primitive groove, yolk sac
-Facts: Week 3, 15 - 17 days, 0.4 mm
-View 1: embryonic disc, showing the epiblast viewed from the amniotic (dorsal) side.
-Events: Gastrulation is continuing as cells migrate from the epiblast, continuing to form mesoderm.
-Mesoderm lies between the ectoderm and endoderm as a continuous sheet except at the buccopharyngeal and cloacal membranes. These membranes have ectoderm and endoderm only and will lie at the rostral (head) and caudal (tail) of the gastrointestinal tract.
-Original file name: Stage7n3.jpg [http://embryology.med.unsw.edu.au/wwwhuman/Stages/stage7.htm UNSW Embryology Carnegie Stage 7]
-{{Template:Kyoto collection}}
-[[Category:Human Embryo]] [[Category:Carnegie Stage]] [[Category:Carnegie Stage 7]] [[Category:Week 3]] [[Category:Gastrulation]]