BGDA Practical 7 - Week 7: Difference between revisions

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| Pancreas - Week 7 to 20 pancreatic hormones secretion increases, small amount maternal insulin.
| Pancreas - Week 7 to 20 pancreatic hormones secretion increases, small amount maternal insulin.
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| [[File:Thyng1914_fig02.jpg|300px]]
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Revision as of 14:23, 18 May 2014

Introduction

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


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

(Place 7 week ultrasounds here)

Endocrine Development

Pancreas - Week 7 to 20 pancreatic hormones secretion increases, small amount maternal insulin. Thyng1914 fig02.jpg

Musculoskeletal Development

Musculoskeletal System Development

Limb Development

  • Digits - hand and foot "paddles", death (apoptosis) of cells between digits commences.
  • Ossification - bones form by endochondral ossification and throughout embryo replacement of cartilage with bone (week 5 onward).


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




   

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
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Endocrine - Pancreas Development Week 7 to 20 pancreatic hormones secretion increases, small amount maternal insulin

Respiratory System Development Week 7 - enlargement of liver stops descent of heart and lungs

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Stage 18 Stage18 bf1.jpg

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

Smell vomeronasal fibres and nervus terminalis PMID 15604533

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

Neural System Development duramater appears PMID 15478101

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Liver (stage 18 to 23) biliary ductules developed in periportal connective tissue produces ductal plates that receive biliary capillaries PMID 9407542

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Stage 19 Stage19 bf1.jpg Neural System Development accessory olivary nucleus appears PMID 2268071
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Practical 6: Week 3 | Week 4 | Week 5 | Week 6 | Week 7 | Week 8