What is the function of the endocardium?

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Study the AQA A Level PE Test for The Cardiovascular System. Prepare with flashcards and multiple choice questions, each with explanations. Get ready for exam success!

Multiple Choice

What is the function of the endocardium?

Explanation:
The endocardium is the inner lining of the heart. It lines the chambers and covers the heart valves, providing a smooth, low-friction surface for blood to flow and helping protect the heart tissue from wear as blood moves through the heart. It’s continuous with the endothelium that lines all blood vessels. The pumping action comes from the muscular heart wall (myocardium), not the endocardium, and heart sounds come from valve closures and blood flow, not from this inner lining.

The endocardium is the inner lining of the heart. It lines the chambers and covers the heart valves, providing a smooth, low-friction surface for blood to flow and helping protect the heart tissue from wear as blood moves through the heart. It’s continuous with the endothelium that lines all blood vessels. The pumping action comes from the muscular heart wall (myocardium), not the endocardium, and heart sounds come from valve closures and blood flow, not from this inner lining.

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