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Umbilical Cord Torsion in Mares

by Robert N. Oglesby DVM

Introduction

The umbilical cord is the fetal structure that feeds nutrients and oxygen and removes many wastes while the foal is in the uterus. It works by circulating the fetal blood through the placenta. Here the close apposition with the maternal blood supply allows diffusion of oxygen, nutrients and waste products across the membranes. The cord also contains the urachus which transports urine into the allantoic sac.

Excessive twisting or the cord can result in obstruction resulting in congenital defects or abortion. Twisting alone is not enough to diagnose this condition as it is normal and occurs due to fetal motility. This article discusses diagnosis of this condition.

      ~Word Count: 975 words (The average magazine page contains about 600 words);
      ~Last Updated: September 08, 2009;

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