Which set correctly lists the pericardial layers?

Which set correctly lists the pericardial layers?

• A. Endocardium, Myocardium, Epicardium
• B. Dura, Arachnoid, Pia
• C. Mucosa, Submucosa, Muscularis
• D. Fibrous, Parietal, Visceral (Serous)

Answer: (D)

Understanding the pericardial coverings: the outermost layer is the fibrous pericardium, a tough sac that protects the heart. Inside this sac lies the serous pericardium, which has two layers: a parietal layer that lines the inner surface of the fibrous sac, and a visceral layer that hugs the heart itself (the epicardium). The space between these serous layers is the pericardial cavity, containing fluid to minimize friction during heartbeats. So, listing fibrous, parietal, and visceral (serous) accurately represents the pericardial layers. The other options mix in heart-wall layers or unrelated membranes, which don’t describe the pericardial anatomy.

Understanding the pericardial coverings: the outermost layer is the fibrous pericardium, a tough sac that protects the heart. Inside this sac lies the serous pericardium, which has two layers: a parietal layer that lines the inner surface of the fibrous sac, and a visceral layer that hugs the heart itself (the epicardium). The space between these serous layers is the pericardial cavity, containing fluid to minimize friction during heartbeats. So, listing fibrous, parietal, and visceral (serous) accurately represents the pericardial layers. The other options mix in heart-wall layers or unrelated membranes, which don’t describe the pericardial anatomy.