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From Embryology
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[[File:Anderson2016-fig07b.jpg|thumb|150px|link=Paper - Teratogenecity in the setting of cardiac development and maldevelopment|Heart ([[Carnegie stage 14]])]]
[[File:Anderson2016-fig07b.jpg|thumb|150px|link=Paper - Teratogenecity in the setting of cardiac development and maldevelopment|Heart ([[Carnegie stage 14]])]]
[[File:Chicken Embryo Somite1-icon.jpg|thumb|150px|link=Chicken Somitogenesis Movie 1|Chicken Somitogenesis]]
[[File:Chicken Embryo Somite1-icon.jpg|thumb|150px|link=Chicken Somitogenesis Movie 1|Chicken Somitogenesis]]
[[User:Z8600021|Mark Hill]] ([[User talk:Z8600021|talk]]) 19:38, 21 February 2017 (AEDT) Added {{Ref-Ramsey1972}}
[[User:Z8600021|Mark Hill]] ([[User talk:Z8600021|talk]]) 10:00, 21 February 2017 (AEDT) Updated [[Lymph Node Development]] and [[SH Lecture - Lymphatic Structure and Organs]] pages.
[[User:Z8600021|Mark Hill]] ([[User talk:Z8600021|talk]]) 05:32, 19 February 2017 (AEDT) Added draft paper {{Ref-Anderson2016}} and draft associated pages [[Cardiovascular_-_Detailed_Cardiac_Development|Detailed Cardiac Development]].
[[User:Z8600021|Mark Hill]] ([[User talk:Z8600021|talk]]) 18:12, 8 February 2017 (AEDT) Updated [[BGD_Tutorial_-_Applied_Embryology_and_Teratology|BGD Tutorial - Applied Embryology and Teratology]] with new 2017 report data.
[[User:Z8600021|Mark Hill]] ([[User talk:Z8600021|talk]]) 14:08, 3 February 2017 (AEDT) Added [[Mouse Blastocyst Cdx2 Movie]] and [[Chicken Somitogenesis Movie 1|Chicken Somitogenesis Movie]].
[[File:Stage14 sem5c.jpg|thumb|150px|link=https://embryology.med.unsw.edu.au/embryology/Slides/Embryo_Stages/Stage14/sem5/stage14sem5.html|stage 14 SEM]]
[[File:Low1909 plate01fig01.jpg|thumb|150px|link=Paper - Further observations on the ossification of the human lower jaw|Human embryo 18 mm mandible]]

Revision as of 17:54, 3 February 2018

Embryology - 4 Jun 2020    Facebook link Pinterest link Twitter link  Expand to Translate  
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A personal message from Dr Mark Hill (May 2020)  
Mark Hill.jpg
I have decided to take early retirement in September 2020. During the many years online I have received wonderful feedback from many readers, researchers and students interested in human embryology. I especially thank my research collaborators and contributors to the site. The good news is Embryology will remain online and I will continue my association with UNSW Australia. I look forward to updating and including the many exciting new discoveries in Embryology!


In May 2017 UNSW Embryology reached a landmark of more than 3,000 content pages and more than 14,000 uploaded files. Current total number of topic pages - 6,251

This current page contains links to content pages that have been recently updated or added to this site. Please note that not all site updates are logged on this current page.

UNSW Embryology has now been available online and continuously updated for 21 years!

Since software updated to MediaWiki 1.26.2 the total number of page views magicword is no longer supported. Therefore I cannot continue to provide view count updates from 2016 onwards. Individual pages will also no longer show "number of views" in the footer. 10 Popular Pages below is based upon pre-2016 data.

10 Popular Pages  
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OK these are not my rankings, but by you the viewer.

These are the top ten popular pages based upon page views.

I have excluded the Main page, student projects and undergraduate course pages. Note, this data has not been updated since 1 January 2016, when page visit logs were removed.

1 January 2016 (EST)
  1. Embryonic Development‏‎ (399,216 views)
  2. Placenta Development‏‎ (183,296 views)
  3. Timeline human development‏‎ (154,106 views)
  4. Neural System Development‏‎ (116,916 views)
  5. Mouse Development‏‎ (115,361 views)
  6. Respiratory System Development‏‎ (112,977 views)
  7. Placenta - Abnormalities‏‎ (111,887 views)
  8. Implantation‏‎ (111,620 views)
  9. Fetal Development‏‎ (97,150 views)
  10. Chicken Development‏‎ (89,201 views)
Site Map - Main Page - expand to see pages 
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stage 1 stage 2 stage 3 stage 4 Menstrual Cycle Fertilization Zygote Morula Blastocyst Meiosis Mitosis
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stage 5 stage 6 Implantation Trophoblast Human Chorionic Gonadotropin Pregnancy Test Twinning Lecture - Week 1 and 2
Week 3 
(GA week 5)
stage 7 stage 8 stage 9 Gastrulation Endoderm Mesoderm Ectoderm Placenta Coelomic Cavity Lecture - Week 3
Week 4 
(GA week 6)
stage 10 stage 11 stage 12 stage 13 Placodes Pharyngeal arches Lecture - Mesoderm Lecture - Ectoderm Lecture - Early Vascular
Week 5 
(GA week 7)
stage 14 stage 15 Placodes Pharyngeal arches Lecture - Head Atrial Ventricular Septation
Week 6 
(GA week 8)
stage 16 stage 17 Lecture - Head Outflow Tract
Week 7 
(GA week 9)
stage 18 stage 19 Lecture - Head Outflow Tract Heart Valves
Week 8 
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stage 20 stage 21 stage 22 stage 23 Lecture - Head Outflow Tract Heart Valves
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Textbooks Education



List of abbreviations:
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30 May 2020

Mary Ellen Avery
Prof. Mary Ellen Avery


Mark Hill (talk) 17:19, 17 January 2018 (AEDT) Updated Respiratory System - Abnormalities with historic information about Newborn Respiratory Distress Syndrome.

Mark Hill (talk) 15:09, 16 January 2018 (AEDT) Updated Molecular Development - Signaling and appropriate factor pages with tables showing human members of each factor family.



Mark Hill (talk) 10:13, 24 December 2017 (AEDT) Updated Maternal Development and Y Chromosome‎ pages

Mark Hill (talk) 7:16, 10 December 2017 (AEDT) Updated Berlin Meeting 2017 - Digital Embryology Consortium.


Mark Hill (talk) 17:16, 18 November 2017 (AEDT) Updated Fetal Development, added Maternal changes video and table of Carnegie embryos at fetal stage.

Mark Hill (talk) 6:10, 10 November 2017 (AEDT) Added new News link to Template_talk:Main_Page_News#November World Diabetes Day.

Ida Caroline Mann
Ida Caroline Mann (1893-1983)


Mark Hill (talk) 14:46, 18 October 2017 (AEST) Added historic embryology piers on vision development by Ida Mann


Mark Hill (talk) 04:46, 16 September 2017 (AEST) Updated science lecture Renal Development and added 2016 Lecture Movie recording.

Mark Hill (talk) 12:24, 10 September 2017 (AEST) Updated Science Lecture Musculoskeletal Development and added video recordings of 2016 lectures on Neural Crest, Head and Musculoskeletal development.

Mark Hill (talk) 14:16, 3 September 2017 (AEST) Updated science Lecture - Neural Crest Development.

Mouse Ovary Postnatal Germ Cell


Mark Hill (talk) 09:30, 31 August 2017 (AEST) Updated ANAT2341 Lecture - Respiratory Development.

Mark Hill (talk) 16:40, 20 August 2017 (AEST) Updated Liver Development.

Mark Hill (talk) 13:47, 6 August 2017 (AEST) Added Chicken Somitogenesis table and Mouse Somitogenesis table to Somitogenesis page.

Mark Hill (talk) 15:36, 1 August 2017 (AEST) Added Mouse Tooth Development Movie and Zebrafish Primordial Germ Cell Migration.

Mark Hill (talk) 14:23, 1 August 2017 (AEST) Added Mouse Ovary Postnatal Germ Cell Movies.


Mark Hill (talk) 10:16, 30 July 2017 (AEST) Added 2017 Medicine Neural Lecture Movie.

Mark Hill (talk) 10:00, 29 July 2017 (AEST) Added 2016 Science Fertilization Lecture Movie.

Mark Hill (talk) 11:02, 25 July 2017 (AEST) Updated embryology news - CRISPR.

Mark Hill (talk) 09:23, 15 July 2017 (AEST) Updated ANAT2341 Embryology for 2017.

Robert Anderson
Robert H. Anderson


Mark Hill (talk) 12:33, 15 June 2017 (AEST) Added draft presentation Development Group Meeting 2017 - Digital Embryology Consortium.

Mark Hill (talk) 11:09, 6 June 2017 (AEST) Updated Medicine BGDB Practical Sexual Differentiation.

Mark Hill (talk) 08:44, 6 June 2017 (AEST) Added contributor online review article on Cardiac Development and Maldevelopment and links to draft Detailed Cardiac Development pages on 12 key topics.

Mark Hill (talk) 07:27, 4 June 2017 (AEST) Updated Medicine BGDA Practical Placenta and Fetal Membranes.

chicken HH stage 22-25

Mark Hill (talk) 13:27, 2 June 2017 (AEST) Added Nerve Growth Factor draft page and updated chicken Hamburger Hamilton Stages.

Human Embryo (stage 15}


Mark Hill (talk) 11:16, 15 May 2017 (AEST) updated Medicine BGDA Practical - Implantation to 8 Weeks and added collapsible table overviews BGDA Week 4 Movies | BGDA Week 6 Movies | BGDA Week 8 Movies.

Mark Hill (talk) 06:41, 15 May 2017 (AEST) Updated Medicine BGDA - BGDA Lecture - Development of the Embryo/Fetus 2 and BGDA Practical - Implantation to 8 Weeks (practical 6).

Mark Hill (talk) 00:38, 13 May 2017 (AEST) 3000 Pages of Embryology.

Mark Hill (talk) 18:49, 9 May 2017 (AEST) Updated Medicine BGDB - BGD Lecture - Face and Ear Development. Added new stage 15 images.

Mark Hill (talk) 06:47, 7 May 2017 (AEST) Updated Medicine BGDA - BGDA Lecture - Development of the Embryo/Fetus 1 and BGDA Practical - Fertilization to Implantation (practical 3)

Mark Hill (talk) 07:12, 4 May 2017 (AEST) Updated Medicine BGDB - BGD Lecture - Gastrointestinal System Development and BGDB Practical - Gastrointestinal System Development (practical 1).


Mark Hill (talk) 18:12, 5 April 2017 (AEST) Added MRI movies of human embryo stage 16:

Stage 16 Movies: MRI Surface | MRI Surface (labeled) | MRI Central Nervous System | MRI CNS (labeled) | MRI Sagittal | MRI Transverse | MRI Coronal | EFIC Sagittal | EFIC Transverse | EFIC Coronal | EFIC Coronal (label) |
Embryo stage 23 movie
K12 Brain Awareness Week


Mark Hill (talk) 16:33, 30 March 2017 (AEDT) Added MRI movies of human embryo stage 23:

Stage 23 MRI Movies: Surface | Central Nervous System | CNS (labeled) | Sagittal | Sagittal (labeled) | Transverse | Transverse (labeled) | Coronal | Sagittal Head (labeled) | Sagittal GIT (labeled) | Carnegie stage 23

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

Stage 23 Links: Week 8 | System Development | Lecture - Limb | Lecture - Head Development | Lecture - Sensory | Science Practical - Head | Science Practical - Sensory | Science Practical - Urogenital | Historic - Skull Development | Carnegie Embryos | Madrid Embryos | Category:Carnegie Stage 23 | Next Fetal Development
  Historic Papers: 1954 Stage 19-23

Mark Hill (talk) 22:35, 20 March 2017 (AEDT) Added MRI movies of human embryo stage 13:

Stage 13 Movies: MRI Embryo | MRI Embryo (label) | Central Nervous System | Central Nervous System (labeled) | Heart | Heart (labeled) | Sagittal EFIC | Carnegie stage 13 | Kyoto Collection

Mark Hill (talk) 13:56, 18 March 2017 (AEDT) Added Movie showing mouse spermatozoa meiosis.

Mark Hill (talk) 07:39, 16 March 2017 (AEDT) Added Movie cartoon showing Interkinetic Nuclear Migration within neuroepithelial cells.

Mark Hill (talk) 08:12, 15 March 2017 (AEDT) Update for 2017 K12 Brain Awareness Week.

Mark Hill (talk) 18:24, 13 March 2017 (AEDT) PubMed extension temporarily disabled due to database access issue. Reference lists and searches will not display correctly until rectified.

Mark Hill (talk) 17:24, 9 March 2017 (AEDT) Added cytokinesis movie showing mitochondria repositioning during cell division. Updated genital male notes with embryonic position of the mesonephric duct and bladder.

Chicken Somitogenesis



Older statistics have now been transferred to New 2017.


Older statistics have now been transferred to New 2016.


Older statistics have now been transferred to New 2015.


Older statistics have now been transferred to New 2014.

During 2014 the website had more than 18,000,000 total views, double that for the 2013 total views and more than the previous 3 years altogether.


Older statistics have now been transferred to New 2013

During 2013 the website had 9,016,452 total views compared to 11,763,978 in the 3 year period between 2009 to 2012.


Older statistics have now been transferred to New 2012.


Older statistics have now been transferred to New 2011.


Older statistics have now been transferred to New 2010.


Older statistics have now been transferred to New 2009.

Before 2009 Embryology was a website from 1996, rather than the current Wiki format.

Glossary Links

Glossary: A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Numbers | Symbols | Term Link

Cite this page: Hill, M.A. (2020, June 4) Embryology New. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/New

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© Dr Mark Hill 2020, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G