Coelomic Cavity Development: Difference between revisions

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{| class="prettytable"
{| class="prettytable"
| === Extraembryonic Coelom ===
| Extraembryonic Coelom  
<center>cavity surrounding the developing embryo</center>
<center>cavity surrounding the developing embryo</center>
| <center>'''coelomic portals'''transient communication between extra/intracoelom</center>
| <center>'''coelomic portals'''transient communication between extra/intracoelom</center>
| === Intraembryonic Coelom ===
| Intraembryonic Coelom  
<center>horseshoe shaped structure forms 3 main cavities</center>
<center>horseshoe shaped structure forms 3 main cavities</center>
| === Neural Tube ===
| Neural Tube  




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|-
|-
| <center>'''peritoneal cavity''' </center>
| <center>'''peritoneal cavity''' </center>
| <center>(More? [neuron6.htm Neural Notes]) </center>
| <center>(More? [[Neural System Development]]]) </center>


|}
|}


==Mesothelia==
==Mesothelia==

Revision as of 00:35, 23 April 2010

Coelom Links: Introduction | Lecture - Week 3 Development | Lecture - Mesoderm Development | Placenta - Membranes | Category:Coelomic Cavity
Historic Embryology - Coelomic Cavity  
1891 peritoneal | 1897 human coelom | 1910 Coelom and Diaphragm | 1924 serous

Introduction

The intraembryonic coelom is the primitive cavity that lies within the developing embryo that will form the 3 major body cavities: pericardial, pleural, peritoneal.


Peritoneal Cavity (stage 13/14) surrounding the stomach

The coelom forms very early in embryogenesis and is much later paritioned inferiorly by the diaphragm and pleuroperitoneal membrane; and superiorly initially by the pleuropericardial fold between the heart and lungs.


The intraembryonic coelom communicated through coelomic portals (at the level of midgut herniation) with the extraembryonic coelom.


All cavities are fluid filled and developing organs push against a wall of the cavity, generating a double coat (serosal/adventital) surrounding an organ (for example the lungs). The serous membrane is the epithelium (squamous) and its associated underlying loose connective tissue.

Extraembryonic Coelom
cavity surrounding the developing embryo
coelomic portalstransient communication between extra/intracoelom
Intraembryonic Coelom
horseshoe shaped structure forms 3 main cavities
Neural Tube


percardial cavity
Ventricular space
L/R pleural cavities
Spinal canal
peritoneal cavity
(More? Neural System Development])

Mesothelia

The epithelial covering of coelomic organs and also line their cavities.

Contribute to the vasculature of the heart and the intestinal tract. Undergo epithelial-mesenchymal transition (EMT), migration, and differentiation into endothelial cells, vascular smooth muscle cells, and pericytes.

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. (2024, March 29) Embryology Coelomic Cavity Development. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Coelomic_Cavity_Development

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