**Question:** True about foramen of Morgagni -

a) It is the femoral canal
b) It is a diaphragmatic opening
c) Superior epigastric vessels pass through it
d) Located posteriorly
e) Esophagus passes through it

**Core Concept:** Foramen of Morgagni is a right-sided pair of diaphragmatic openings that connect the pleural cavity to the peritoneal cavity. It is named after Italian anatomist Raffaele Morgagni who first described it in 1761.

**Why the Correct Answer is Right:** Foramen of Morgagni is indeed a diaphragmatic opening. It is located on the right side of the diaphragm and allows communication between the pleural and peritoneal cavities. In this case, the correct answer is b) It is a diaphragmatic opening.

**Why Each Wrong Option is Incorrect:**

a) Femoral canal (femoral canal refers to the groin area where the femoral nerve, artery, and vein pass through, not related to the foramen of Morgagni)
d) Located posteriorly (Foramen of Morgagni is located superior to the right hemidiaphragm, not posterior)
e) Esophagus passes through it (Foramen of Morgagni is not directly related to the esophagus; it is connected to the pericardial cavity via the right diaphragmatic hiatus)

**Correct Answer:** b) It is a diaphragmatic opening

**Clinical Pearl:**

Foramen of Morgagni is an important anatomical landmark for surgeons and radiologists when performing imaging studies or surgical procedures involving the thoracic cavity, as misidentification of this opening could lead to complications and misinterpretation of findings.