| subendocardial | <anatomy> Situated under the endocardium. Source: Websters Dictionary (01 Mar 1998) |
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| subendocardial layer | The loose connective tissue layer that joins the endocardium and myocardium; in the ventricles, it contains branches of the conducting system of the heart. (05 Mar 2000) |
| subendocardial myocardial infarction | Infarction that involves only the layer of muscle subjacent to the endocardium. (05 Mar 2000) |