Definition

A thin layer of tissue that covers the inside of the heart and helps protect it.

Example

The doctor explained that the endocardium is important for heart function.

Conversation

Did you know that the heart has a layer called the endocardium?

Really? I didn't know there were different layers like that.

Yeah, the endocardium is the thin membrane that lines the heart's interior.

That's fascinating! I love learning about how our bodies work.

Synonyms & Antonyms

Root Explanation

Endocardium → It is formed from "endo-" (meaning within) and "cardium" (from Greek "kardia", meaning heart). The word "endocardium" refers to the inner lining of the heart.

Memory Tip

Think of 'endo-' meaning 'within' and 'kardia' meaning 'heart' — this helps you remember that the endocardium is the layer that is found within the heart.

Visually Confused Words