**Question:** Boundary of Morrison's pouch is formed by

A. Omental bursa
B. Right round ligament
C. Umbilical cord
D. Liver

**Correct Answer:** B. Right round ligament

**Core Concept:** Morrison's pouch is a potential space located in the abdomen, at the level of the umbilicus, between the round ligament and the liver. It is named after the German surgeon Paul Morrison who first described this area.

**Why the Correct Answer is Right:** The correct answer, the right round ligament, is a thin connective tissue structure that suspends the liver from the anterior abdominal wall. It serves as a border for Morrison's pouch, helping to define its boundaries.

**Why Each Wrong Option is Incorrect:**

A. Omental bursa: This is a small, fluid-filled sac found between the greater omentum and the lesser sac, not related to Morrison's pouch.

C. Umbilical cord: The umbilical cord is a remnant of the placenta connecting the fetus to the uterus and is not involved in defining Morrison's pouch.

D. Liver: Although the liver is adjacent to Morrison's pouch, it is not the boundary that defines the pouch itself. The right round ligament serves this purpose.

**Clinical Pearl:** Understanding the anatomy of Morrison's pouch is crucial for clinicians, as it is a key area for evaluating abdominal pain, particularly in cases of acute appendicitis or cholecystitis, as these conditions can involve structures within or adjacent to Morrison's pouch, requiring accurate identification of the pouch's boundaries for proper diagnosis and management.