Pediatric

Question 1

What is the function of the omphalomesenteric duct?

What develops if it doesn’t obliterate

Answer 1

Omphalomesenteric duct connects midgut to yolk sac

If it persists, it becomes Meckel’s diverticulum

Question 2

What structures do the umbilical arteries develop into after birth?

Answer 2

The medial or lateral umbilical ligaments
- Note: they are called the medial umbilical ligaments when the epigastric vessels are referred to as lateral umbilical ligaments. They are called lateral ligaments when the epigastric vessels are referred to as epigastric folds

Question 3

What do the umbilical veins become after birth?

Answer 3

The falciform ligament

Question 4

What is the function of the urachus?
What is it in adults when it obliterates?
What develops if it persists in life?

Answer 4

Urachus connects the bladder to the allantois

If it obliterates, it becomes the median umbilical ligament

If it persists, it is a patent urachus, sinus, or cyst