Try it
Anatomy · Embryology: pleuropericardial membranes
Sample itemWhich embryonic structure gives rise to the fibrous pericardium?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
B. Pleuropericardial membranes
The pleuropericardial membranes separate the pericardial cavity from the pleural cavities and become the fibrous pericardium. They contain the common cardinal veins and the phrenic nerves, which is why the phrenic nerve runs on the pericardium.
Option by option
A. Dorsal mesentery of the oesophagus
The dorsal mesentery of the oesophagus forms the crura of the diaphragm.
B. Pleuropericardial membranes (correct)
Correct. The pleuropericardial folds form the fibrous pericardium.
C. Septum transversum
The septum transversum forms the central tendon of the diaphragm and the liver stroma.
D. Pericardioperitoneal canals
The pericardioperitoneal canals are the channels into which the lungs grow, forming the pleural cavities.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
More Anatomy questions
- Upper limbA 24-year-old man falls on his shoulder and fractures the surgical neck of the humerus.…
- LarynxWhich intrinsic muscle of the larynx is the only abductor of the vocal cords?
- HeartThe sinoatrial node artery most commonly arises from which vessel?
- Brachial plexusA newborn delivered after a difficult shoulder dystocia holds the arm adducted, internal…