2010 BGD Practical 6 - Week 7: Difference between revisions

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==Introduction==
==Introduction==
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Key Events of Human Development during the seventh week (week 7)  following fertilization or Clinical week 9 (LMP).
(Place 7 week ultrasounds here)
* Pancreas - Week 7 to 20 pancreatic hormones secretion increases, small amount maternal insulin
* Limb bones form by [[E#endochondral ossification|endochondral ossification]] and throughout embryo replacement of cartilage with bone (week 5 onward).
<gallery>
File:Endochondral_bone.jpg|Endochondral ossification in limb
File:Endochondral_ossification.jpg|Endochondral ossification
File:Ossification_centre.jpg|Intramembranous ossification
File:Fetal_head_medial.jpg|Head Intramembranous ossification
</gallery>
<gallery>
File:Stage18_bf1c.jpg|Stage 18
File:Stage19_bf1c.jpg|Stage 19
</gallery>
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===Embryo Stages and Events===
{| class="prettytable"
| width= "50px" | '''Day'''
| width= "100px" | '''Stage'''
| '''Event'''
|-
| <center>43</center>
|
| [http://embryology.med.unsw.edu.au/Notes/endocrine10.htm Pancreas] Week 7 to 20  pancreatic hormones secretion increases, small amount maternal insulin
[http://embryology.med.unsw.edu.au/Notes/respire.htm Respire]  Week 7 - enlargement of liver stops descent of heart and lungs
|-
| <center>44</center>
| [[Carnegie_stage_18|Stage 18]]
| [[File:Stage18_bf1c.jpg|200px|link=Carnegie stage 18]]
[http://embryology.med.unsw.edu.au/Notes/skmus7.htm Limb]  [http://embryology.med.unsw.edu.au/Notes/skmus9.htm bones] form by endochondrial ossification and throughout embryo replacement of cartilage with bone (week 5-12).
[http://embryology.med.unsw.edu.au/Notes/nose.htm Sense - Smell]  vomeronasal fibres and nervus terminalis [http://www.ncbi.nlm.nih.gov/pubmed/15604533 PMID: 15604533]
[http://embryology.med.unsw.edu.au/Notes/git7.htm GIT - Liver]  obturation due to epithelial proliferation, bile ducts became reorganized, continuity between liver cells and gut [http://www.ncbi.nlm.nih.gov/pubmed/9407542 PMID: 9407542]
[http://embryology.med.unsw.edu.au/Notes/neuron.htm Neural]  duramater appears [http://www.ncbi.nlm.nih.gov/pubmed/15478101 PMID: 15478101]
|-
| <center>45</center>
| &nbsp;
| &nbsp;
[http://embryology.med.unsw.edu.au/Notes/git7.htm GIT - Liver] (stage 18 to 23)  biliary ductules developed in periportal connective tissue
produces ductal plates that receive biliary capillaries [http://www.ncbi.nlm.nih.gov/pubmed/9407542 PMID: 9407542]
|-
| <center>46</center>
| &nbsp;
| &nbsp;
|-
| <center>47</center>
| &nbsp;
| &nbsp;
|-
| <center>48</center>
| [[Carnegie_stage_19|Stage 19]]
| [[File:Stage19_bf1c.jpg|200px|link=Carnegie stage 19]] [http://embryology.med.unsw.edu.au/Notes/neuron.htm Neural]  accessory olivary nucleus appears [http://www.ncbi.nlm.nih.gov/pubmed/2268071 PMID: 2268071]
|-
| <center>49</center>
| &nbsp;
| &nbsp;
|}




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[[Category:Week 7]]

Latest revision as of 01:24, 18 May 2010

Introduction

BGDsmall.jpg

Practical 6: Week 3 | Week 4 | Week 5 | Week 6 | Week 7 | Week 8 | Quiz


Key Events of Human Development during the seventh week (week 7) following fertilization or Clinical week 9 (LMP).

(Place 7 week ultrasounds here)

  • Pancreas - Week 7 to 20 pancreatic hormones secretion increases, small amount maternal insulin
  • Limb bones form by endochondral ossification and throughout embryo replacement of cartilage with bone (week 5 onward).


BGDsmall.jpg

Practical 6: Week 3 | Week 4 | Week 5 | Week 6 | Week 7 | Week 8 | Quiz




   

Additional Information

Additional Information - Content shown under this heading is not part of the material covered in this class. It is provided for those students who would like to know about some concepts or current research in topics related to the current class page.


Detailed Week by Week

The following information is a detailed timeline of embryonic development between week 3 to 8 and content does not form part of the current practical class.

Week 3 | Week 4 | Week 5 | Week 6 | Week 7 | Week 8

Embryo Stages and Events

Day Stage Event
43
Pancreas Week 7 to 20 pancreatic hormones secretion increases, small amount maternal insulin

Respire Week 7 - enlargement of liver stops descent of heart and lungs

44
Stage 18 Stage18 bf1c.jpg

Limb bones form by endochondrial ossification and throughout embryo replacement of cartilage with bone (week 5-12).

Sense - Smell vomeronasal fibres and nervus terminalis PMID: 15604533

GIT - Liver obturation due to epithelial proliferation, bile ducts became reorganized, continuity between liver cells and gut PMID: 9407542

Neural duramater appears PMID: 15478101

45
   

GIT - Liver (stage 18 to 23) biliary ductules developed in periportal connective tissue

produces ductal plates that receive biliary capillaries PMID: 9407542

46
   
47
   
48
Stage 19 Stage19 bf1c.jpg Neural accessory olivary nucleus appears PMID: 2268071
49
   


BGDsmall.jpg

Practical 6: Week 3 | Week 4 | Week 5 | Week 6 | Week 7 | Week 8 | Quiz



Glossary Links

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2010 BGD: Lecture 1 | Lecture 2 | Practical 3 | Practical 6 | Practical 12

Cite this page: Hill, M.A. (2024, March 28) Embryology 2010 BGD Practical 6 - Week 7. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/2010_BGD_Practical_6_-_Week_7

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G