Cord Blood Umbilical Cord 2

Question 1

What is the typical diameter of a full-term umbilical cord?

Accepted Answer

1–2 cm

Answer

A full-term umbilical cord typically measures 1–2 cm in diameter.

Question 2

Which structure in the umbilical cord prevents kinking and compression of blood vessels?

Accepted Answer

Wharton's jelly

Answer

Wharton's jelly is a gelatinous substance that cushions and protects the umbilical blood vessels.

Question 3

A two-vessel umbilical cord (single umbilical artery) is associated with an increased risk of which condition?

Accepted Answer

Fetal chromosomal anomalies

Answer

A single umbilical artery is a soft marker for fetal chromosomal and structural anomalies.

Question 4

What is a nuchal cord?

Accepted Answer

The cord wrapped around the fetal neck

Answer

A nuchal cord refers to the umbilical cord wrapped one or more times around the fetal neck.

Question 5

During cord blood banking, clamping the cord too early may reduce collection volume because:

Accepted Answer

Less blood remains in the cord and placenta

Answer

Early clamping limits the amount of blood that stays in the placenta and cord, reducing the collectible stem-cell-rich volume.

Cord Blood Practice Test