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I pulled a few notes to share with you from an article…… cant all be fun and games right? Coch and I are trying to figure out the veining structure and how/where all the blood recedes to, if its through the umbilicus or other, its quite confusing and I need a embryology course for sure : ( But I ran into some cool info, a bit over my head so I just pasted a tad that was fairly cool to know. I am sure when OZ gets back he can explain this for us, his profession I am sure he can put it in our terms.
The chicks chorioallantoic (CAM) membrane (what we call “inner membrane”) is extremely vascular and is crucial for embryo development. It is responsible for transfer of calcium from the eggshell to the embryo, provides gas exchange, and balances acids in the embryo, water, and electrolyte reabsorption from the allantoic cavity where urinary waste products are discharged.
"During the embryonic development, calcium is reabsorbed from the eggshell and is transferred to the embryo for bone formation. The chorionic epithelial cells mobilize and transport eggshell calcium into the embryonic circulation in a development-specific manner, starting at days 10–12 and peaking around day 17 of incubation, concomitantly with the onset of calcium accumulation by the embryo."
Review Article
The Chick Chorioallantoic Membrane: A Model of Molecular, Structural, and Functional Adaptation to Transepithelial Ion Transport and Barrier Function during Embryonic Development
Maria Gabriella Gabrielli and Daniela Accili
http://www.hindawi.com/journals/bmri/2010/940741/
The chicks chorioallantoic (CAM) membrane (what we call “inner membrane”) is extremely vascular and is crucial for embryo development. It is responsible for transfer of calcium from the eggshell to the embryo, provides gas exchange, and balances acids in the embryo, water, and electrolyte reabsorption from the allantoic cavity where urinary waste products are discharged.
"During the embryonic development, calcium is reabsorbed from the eggshell and is transferred to the embryo for bone formation. The chorionic epithelial cells mobilize and transport eggshell calcium into the embryonic circulation in a development-specific manner, starting at days 10–12 and peaking around day 17 of incubation, concomitantly with the onset of calcium accumulation by the embryo."
Review Article
The Chick Chorioallantoic Membrane: A Model of Molecular, Structural, and Functional Adaptation to Transepithelial Ion Transport and Barrier Function during Embryonic Development
Maria Gabriella Gabrielli and Daniela Accili
http://www.hindawi.com/journals/bmri/2010/940741/
