Meckel's diverticulum represents a persistent remnant of the vitello-intestinal (omphalomesenteric) duct. It is located on the anti-mesenteric border of the ileum at what distance from the ileocaecal valve?
- A 2 feet (approximately 60 cm) ✓
- B 5 cm
- C 5 feet (approximately 150 cm)
- D 12 cm
Correct answer: A. 2 feet (approximately 60 cm)
Explanation
Meckel's diverticulum follows the 'rule of 2s': 2% of the population, 2 feet (approximately 60 cm) from the ileocaecal valve, 2 inches long, 2 times more common in males, may contain 2 types of ectopic mucosa (gastric most common, pancreatic also). It is a true diverticulum (contains all bowel wall layers) on the anti-mesenteric border. Gastric ectopic mucosa secretes acid, causing peptic ulceration and painless rectal bleeding — particularly in children. A Meckel's scan (technetium-99m pertechnetate) detects ectopic gastric mucosa.
Reference: BD Chaurasia's Human Anatomy, 8th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.