Questions: The layer of the serous pericardium is tightly adhered to the heart, whereas the layer of the serous pericardium is tightly adhered to the fibrous pericardium. Multiple Choice parietal; visceral visceral; parietal visceral; fibrous fibrous; superficial

The answer is the second one (B): visceral; parietal.

Explanation for each option:

A. Parietal; visceral - This is incorrect because the parietal layer is not adhered to the heart. The parietal layer is the outer layer of the serous pericardium and is adhered to the fibrous pericardium.

B. Visceral; parietal - This is correct. The visceral layer of the serous pericardium, also known as the epicardium, is tightly adhered to the heart. The parietal layer is adhered to the fibrous pericardium.

C. Visceral; fibrous - This is incorrect because the visceral layer is adhered to the heart, not the fibrous pericardium.

D. Fibrous; superficial - This is incorrect because it does not accurately describe the layers of the serous pericardium. The fibrous pericardium is a separate structure from the serous pericardium.

In summary, the visceral layer of the serous pericardium is tightly adhered to the heart, and the parietal layer is tightly adhered to the fibrous pericardium.