Question:medium
Which of the following statements regarding the placenta and umbilical cord is correct?
Which of the following statements regarding the placenta and umbilical cord is correct?
Show Hint
Recall the protective gel and the true vessel count of the cord.
Updated On: Jun 24, 2026
- The placental artery provides nutrients through the umbilical cord to the baby
- The cord has Wharton's jelly
- The cord has 2 veins and 1 artery
- Estrogen is secreted only by the placenta
Show Solution
The Correct Option is B
Solution and Explanation
Step 1: Picture the cord in cross-section: three vessels suspended in a soft connective-tissue gel.
Step 2: That protective gel is Wharton's jelly, which keeps the vessels from collapsing or twisting. This single fact validates option B.
Step 3: Checking the rest: the true vessel count is two arteries and one vein, so the 2-vein claim is false; oxygenated, nutrient-rich blood flows to the fetus via the vein, not an artery, so the artery claim fails too. Only the Wharton's jelly statement holds.
\[\boxed{\text{The cord has Wharton's jelly}}\]
Step 2: That protective gel is Wharton's jelly, which keeps the vessels from collapsing or twisting. This single fact validates option B.
Step 3: Checking the rest: the true vessel count is two arteries and one vein, so the 2-vein claim is false; oxygenated, nutrient-rich blood flows to the fetus via the vein, not an artery, so the artery claim fails too. Only the Wharton's jelly statement holds.
\[\boxed{\text{The cord has Wharton's jelly}}\]
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