Question

What are the contents of umbilical cord?

• A. 2 arteries, 2 veins
• B. 1 artery, 2 veins
• C. 2 arteries, 1 vein
• D. 1 artery, 1 vein

Hint:

Umbilical cord has two arteries and one vein. Remember: AAV = Artery, Artery, Vein.

Answer 1

The Correct Option is C

Concept: The normal umbilical cord contains three blood vessels embedded in Wharton's jelly.

Step 1: Recall normal umbilical cord vessels.
The umbilical cord normally contains: \[ 2\ \text{umbilical arteries} + 1\ \text{umbilical vein} \]

Step 2: Understand function.
The two umbilical arteries carry deoxygenated blood from fetus to placenta. The single umbilical vein carries oxygenated blood from placenta to fetus.

Step 3: Choose the correct answer.
Therefore, the contents are: \[ 2\ \text{arteries and } 1\ \text{vein} \]