The serous membrane covering the outer surface of the heart is the:
(a) Parietal layer of the serous pericardium
(b) Endocardium
(c) Myocardium
(d) Visceral layer of the serous pericardium

검증된 단계별 안내

Step 1: Understand the structure of the serous pericardium, which is a double-layered membrane surrounding the heart. It consists of two layers: the parietal layer (outer) and the visceral layer (inner).

Step 2: Recognize that the visceral layer of the serous pericardium is also known as the epicardium, which directly covers the outer surface of the heart.

Step 3: Differentiate the other options: the endocardium lines the inner chambers of the heart, and the myocardium is the thick muscular middle layer responsible for contraction.

Step 4: Identify that the parietal layer of the serous pericardium lines the inner surface of the fibrous pericardium, not the heart itself.

Step 5: Conclude that the serous membrane covering the outer surface of the heart is the visceral layer of the serous pericardium.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Serous Pericardium

The serous pericardium is a double-layered membrane surrounding the heart. It consists of the parietal layer lining the fibrous pericardium and the visceral layer, also called the epicardium, which directly covers the heart's outer surface.

Layers of the Heart Wall

The heart wall has three layers: the endocardium (inner lining), myocardium (muscular middle layer responsible for contraction), and epicardium (outer layer, which is the visceral layer of the serous pericardium). Each layer has distinct structure and function.

Visceral vs Parietal Layers

The visceral layer of the serous pericardium adheres tightly to the heart surface, while the parietal layer lines the inner surface of the fibrous pericardium. The space between them contains fluid to reduce friction during heartbeats.

The serous membrane covering the outer surface of the heart is the:(a) Parietal layer of the serous pericardium(b) Endocardium(c) Myocardium(d) Visceral layer of the serous pericardium