Question

Which of the following structures develops from the structure marked 4?

• A. Medial umbilical ligament
• B. Median umbilical ligament
• C. Meckel's diverticulum
• D. Ligamentum teres

Answer 1

The Correct Option is B

The structure marked as "4" in the image is most likely the urachus. The urachus is a vestigial remnant of the fetal connection between the bladder and the umbilicus. During fetal development, this is part of the allantois, which subsequently becomes obliterated after birth. The urachus ultimately develops into the median umbilical ligament. Therefore, the structure marked "4" develops into the median umbilical ligament.

Option	Development
Medial umbilical ligament	Formed from the obliterated umbilical arteries
Median umbilical ligament	Develops from the urachus
Meckel's diverticulum	Persistence of the vitelline duct
Ligamentum teres	Derived from the obliterated umbilical vein

The correct answer is: Median umbilical ligament.