Two umbilical arteries are typically documented sonographically in the second trimester. They encircle the fetal bladder (asterisk) as extensions of the.

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Presentation transcript:

Two umbilical arteries are typically documented sonographically in the second trimester. They encircle the fetal bladder (asterisk) as extensions of the superior vesical arteries. In this color Doppler sonographic image, a single umbilical artery, shown in red, runs along the bladder wall before joining the umbilical vein (blue) in the cord. Below this, the two vessels of the cord, seen as a larger red and smaller blue circle, are also seen floating in a cross section of a cord segment. Citation: Placental Abnormalities, Cunningham F, Leveno KJ, Bloom SL, Dashe JS, Hoffman BL, Casey BM, Spong CY. Williams Obstetrics, 25e; 2018. Available at: https://obgyn.mhmedical.com/DownloadImage.aspx?image=/data/books/1918/cunnwo25-ch006_f005.png&sec=185046680&BookID=1918&ChapterSecID=144148471&imagename= Accessed: November 05, 2018 Copyright © 2018 McGraw-Hill Education. All rights reserved

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