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Fetal pig anatomy and physiology, Detailed explanations would bevery aprecciated!

1. The presence of the allantoic duct in the umbilicus providesa clue regarding how the functional roles of extraembryonicmembranes in placental mammals have been modified evolutionarilyfrom their roles in chick development. Explain!

2. What function does theumbilical cord play in a fetal mammal? To what does it connect?What are the functional roles of the umbilical artery and vein (andwhich carries more oxygen)?

3. From which embryonic germ layer does the coelomic lining(peritoneum) arise? By what process do the coelomic cavitiesdevelop?

4. How does a fetal pig obtainoxygen? What triggers the changeover to

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Keith Leannon
Keith LeannonLv2
29 Sep 2019

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