The Umbilical Cord Flashcards
the normal umbilical artery should have 2 ___ and 1 ___
2 arteries nad 1 vein
what surrounds the umbilical cord
Whartons jelly
what is the average length of the umbilical cord
51-61cm
are the arteries or veins longer?
arteries
the single vein carries ___ blood into the ductus venous
oxygenated
what is the fetal pathway of oxygenated blood
- umbilical vein to left portal vein
- left portal vein to ductus venosus
- to left or middle hepatic vein
- to IVC
- to right atrium
- to right ventricle to pulmonary artery
- to ductus arteiosis
- to aorta
the two arteries carry ___ blood back to the placenta
deoxygenated
the umbilical arteries originate from the ___
iliac arteries
normal umbilical artery waveform is ___
low resistance with good diastolic flow
the umbilical vein closes off at birth and evolves to form what
ligamentum teres
the ACI should be between what two structures
between stomach and bladder
___: focally dilated segment of the umbilical vein
umbilical varix
umbilical vein thrombosis is associated with what
-maternal diabetes and non immune hydrops
___: cord wrapped around fetal neck
nuchal cord
___: single umbilical artery present within the cord
2 vessel cord
what is the most common umbilical cord anomaly
2 vessel cord
2 vessel cord can be associated with what
- GU anomalies
- CNS anomalies
- omphalocele
- cardiac anomalies
- trisomy 13 and 18
- multifetal pregnancy
___: more than 3 vessels in the umbilical cord
supernumerary vessels
supernumerary vessels are associated with what
- conjoined twins
- singleton pregnancies with multiple anomalies
a short umbilical cord is associated with what
- IURGR
- limb body wall complex
non coiled cords are associated with what
- fetal anomalies
- aneuploidy
- IUGR
- oligohydramnios
- fetal heart rate decelerates
- preterm delivery
- demise
hyper coiled cords are associated with what
- velamentous cord insertion
- single umbilical artery
- fetal anomalies
- aneuploidy
- oligohydramnios
- fetal HR decelerations
- early delivery
- fetal demise
- vascular thrombosis of chorionic plate and umbilical cord thrombosis
normally which umbilical vein remains open
left
in normal anatomy the umbilical vein curves to the ___ and gallbladder is ___ to the vein
liver and gallbladder is lateral to the vein
with PRUV the umbilical vein curves to the ___and the gallbladder is ___ to the vein
stomach and gallbladder is medial to the vein
