1.
The umbilical cord is first visible sonographically at approximately ___(#) weeks gestation and appears as a __________, ____________ structure.
2.
The umbilical cord normally contains two _____________ and one ______________, both surrounded by ________________ ________________.
3.
Wharton's jelly is a gelatinous ______________ ______________ within the umbilical cord.
4.
It protects the umbilical vessels from being ______________ or _______________. It also acts as a ________________.
5.
The umbilical vein carries __________________ blood from ______________ to _______________
A. 
Oxygenated, fetus, placenta
B. 
Deoxygenated, fetus, placenta
C. 
Oxygenated, placenta, fetus
6.
__________ umbilical artery(ies) carry __________________ blood from the ______________ to the _______________.
A. 
Two, oxygenated, fetus, placenta
B. 
Two, deoxygenated, fetus, placenta
C. 
One, deoxygenated, placenta, fetus
7.
The cord usually attains a final length of ...
8.
Short cords are usually associated with ____________ ____________ defects.
9.
Diameter of cord is normally less that ____(#) cm
10.
Unusually long cord is associated with...
A. 
B. 
C. 
D. 
E. 
11.
The umbilical cord is best visualized in mid-_____________ trimester and early ______________ trimester, when amniotic fluid is at its _____________.
12.
Due to the extreme length of the cord is is UNLIKELY to scan it in its entirety.
13.
It is not so important to visualize the placental insertion site of the cord, as long as the entry site into the fetus is seen.
14.
Visualization of the cord's insertion into the fetus helps to rule out ______________.
15.
The presence of _________ vessels within the cord should be documented.
16.
Check all abnormalities that should be noted while scanning the umbilical cord...
Any abnormalities in cord size, position, or abnormal attachment sites to the placenta should be noted
A. 
B. 
C. 
Abnormal attachment to placenta
17.
Another method of visualizing the umbilical cord is to use ______________ to look for two arteries as they coarse around the fetal _____________.
18.
What should be documented sonographically?
A. 
B. 
Cord insertion into fetal abdomen
C. 
Cord insertion into placenta
D. 
19.
Transverse images through the cord reveal ___________ circles, representing the larger ___________ and __________ smaller ____________.
20.
Longitudinal images reveal a series of ________________ linear echoes within the amniotic fluid. When several portions of the cord are folded on top of one another a "__________ ________ __________" appearance is seen.
21.
Single umbilical artery, aka ___________ ______________ ______________,
22.
What is the most common abnormality of the umbilical cord, seen in approximately 1% of all pregnancies.
23.
The cause of single umbilical artery is probably _____________ of a previous normal artery.
24.
Pre-natal diagnosis of SUA should prompt examination for other ____________.
25.
Currently, there is no definite correlation between SUA and any specific type or pattern of anomalies.