| 词条 | Connecting stalk |
| 释义 |
| Name = Connecting stalk | Latin = pedunculus connectans | Image = | Caption = | Image2 = | Caption2 = | precursor = Extraembryonic mesoderm }} The connecting stalk is a yolk sac diverticulum.[1] It is derived from extraembryonic mesoderm.[2] Progressive expansion of the amnion from the umbilical ring (surrounding the roots of the vitelline duct and connecting stalk) creates a tube of amniotic membrane. The amniotic membrane and its contents form the Umbilical cord[3] References1. ^{{cite book|author=M. W. Rana|title=Human embryology made easy|url=https://books.google.com/books?id=M80dvJsbY08C&pg=PA66|accessdate=22 May 2011|date=28 July 1998|publisher=CRC Press|isbn=978-90-5702-545-7|pages=66–}} {{Development of circulatory system}}{{Authority control}}{{developmental-biology-stub}}2. ^{{Cite book|title = Larsen's Human Embryology: with STUDENT CONSULT Online Access|url = https://books.google.com/books?id=XQuqBAAAQBAJ|publisher = Elsevier Health Sciences|date = 2012-05-07|isbn = 9781455727919|language = en|first = Gary C.|last = Schoenwolf|first2 = Steven B.|last2 = Bleyl|first3 = Philip R.|last3 = Brauer|first4 = Philippa H.|last4 = Francis-West|page = 57}} 3. ^Larsen's Embryology, 5th edition, p138. 1 : Embryology |
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