Immune System Development: Difference between revisions
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| [[File:Stage_13_image_074.jpg|300px]] | | [[File:Stage_13_image_074.jpg|300px]] | ||
| The human spleen arises in week 5 within the dorsal mesogastrium as proliferating mesenchyme overlying the dorsal pancreatic endoderm. Cells required for its hemopoietic function arise from the yolk sac wall and near dorsal aorta. The spleen generates both red and white cells in the 2nd trimester. Note that many embryonic RBCs remain nucleated. | | The human spleen arises in week 5 within the [[D#dorsal mesogastrium|dorsal mesogastrium]] as proliferating [[M#mesenchyme|mesenchyme]] overlying the dorsal pancreatic endoderm. Cells required for its hemopoietic function arise from the yolk sac wall and near dorsal aorta. | ||
The spleen generates both red and white cells in the 2nd trimester. Note that many embryonic RBCs remain nucleated. | |||
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| [[:File:Stage_13_image_074.jpg|D4]] Dorsal Mesogastrium ([[Carnegie stage 13|stage 13)]] | | [[:File:Stage_13_image_074.jpg|D4]] Dorsal Mesogastrium ([[Carnegie stage 13|stage 13)]] |
Revision as of 13:20, 20 August 2010
Introduction
Development of the immune system will also link to cardiovascular development notes (blood and vessel) and bone marrow development. Two organs which also relate to this system are the thymus and spleen, which have in the past been included in endocrine and gastrointestinal tract development respectively.
Some Recent Findings
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Spleen Development
The human spleen arises in week 5 within the dorsal mesogastrium as proliferating mesenchyme overlying the dorsal pancreatic endoderm. Cells required for its hemopoietic function arise from the yolk sac wall and near dorsal aorta.
The spleen generates both red and white cells in the 2nd trimester. Note that many embryonic RBCs remain nucleated. | |
D4 Dorsal Mesogastrium (stage 13) |
- Links: Spleen Development
Related Images
Developing Human Thymus (stage 22)
F1 Developing Human Spleen (stage 22)
F2 Developing Human Spleen (stage 22)
F3 Developing Human Spleen (stage 22)
References
Reviews
Articles
Search Pubmed
Search August 2010 "Immune System Development" All (90551) Review (15955) Free Full Text (28278)
Search Pubmed: Immune System Development | Embryo Immune System Development
Glossary Links
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Cite this page: Hill, M.A. (2024, May 21) Embryology Immune System Development. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Immune_System_Development
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G