The subhepatic space communicates with the lesser sac through the foramen of.....

• A. Winslow
• B. Charcot
• C. Monro
• D. Magendie

Answer: (A)

Communication between the greater and lesser peritoneal sacs occurs through the epiploic foramen, also known as the foramen of Winslow. The subhepatic space lies in the right upper quadrant between the liver and the right kidney and is part of the greater sac. To reach the lesser sac, which sits posterior to the stomach, fluid or other contents must pass through this opening. The foramen of Winslow is the natural gateway between the two compartments, bounded anteriorly by the hepatoduodenal ligament (containing the portal triad) and posteriorly by the inferior vena cava, with the caudate lobe of the liver above and the first part of the duodenum below. So the subhepatic space communicates with the lesser sac via the foramen of Winslow. Other foramina relate to different systems and do not describe peritoneal communication here.