The inner surface of the heart is lined by a serous membrane, the endocardium, which is smooth and firmly adherent to the muscular structure of the heart.    From Wordnik.com.  [Special Report on Diseases of the Horse] Reference

The endocardium is a thin, smooth membrane which lines and gives the glistening appearance to the inner surface of the heart; it assists in forming the valves by its reduplications, and is continuous with the lining membrane of the large bloodvessels.    From Wordnik.com.  [V. Angiology. 4b. The Heart] Reference

First, metastatic lesions to the endocardium are rare, even rarer than primary cardiac malignancies.    From Wordnik.com.  [Fatal Care]

This attacks the lining membrane, or endocardium, and causes, not infrequently, a shrinkage of the heart valves.    From Wordnik.com.  [Physiology and Hygiene for Secondary Schools] Reference

Secondly, metastases from the lung to the heart are usually the result of direct extension and almost always involve the outer pericardium, not the endocardium.    From Wordnik.com.  [Fatal Care]

Active infective endocarditis confined mural endocardium - study necropsy patients.    From Wordnik.com.  [xml's Blinklist.com] Reference

They firmly adhere to the endocardium, and when detached from it give it a torn appearance.    From Wordnik.com.  [Special Report on Diseases of the Horse] Reference

Lymphatic capillaries have also been described beneath the endocardium and throughout the muscle.    From Wordnik.com.  [VIII. The Lymphatic System. 1. Introduction] Reference

The LV endocardium was segmented from the short-axis images at the times of isovolumetric contraction.    From Wordnik.com.  [BioMed Central - Latest articles] Reference

It is covered by the visceral layer of the serous pericardium (epicardium), and lined by the endocardium.    From Wordnik.com.  [V. Angiology. 4b. The Heart] Reference

By extension of inflammation of the endocardium or pericardium the muscle of the heart may become involved.    From Wordnik.com.  [Special Report on Diseases of the Horse] Reference

These run down in the right and left ventricles, one on either side of the ventricular septum, covered by endocardium.    From Wordnik.com.  [V. Angiology. 4b. The Heart] Reference

In acute inflammation we find a thickening and a roughened appearance of the endocardium throughout the cavities of the heart.    From Wordnik.com.  [Special Report on Diseases of the Horse] Reference

They may slightly adhere to the surface of the cavity, from which they can easily be separated without altering the structure of the endocardium.    From Wordnik.com.  [Special Report on Diseases of the Horse] Reference

The attachment of the artery to its fibrous ring is strengthened by the external coat and serous membrane externally, and by the endocardium internally.    From Wordnik.com.  [V. Angiology. 4b. The Heart] Reference

—Between the endocardium and the ordinary cardiac muscle are found, imbedded in a small amount of connective tissue, peculiar fibers known as Purkinje fibers.    From Wordnik.com.  [V. Angiology. 4b. The Heart] Reference

The Lymphatic Vessels of the Heart consist of two plexuses: (a) deep, immediately under the endocardium; and (b) superficial, subjacent to the visceral pericardium.    From Wordnik.com.  [VIII. The Lymphatic System. 7. The Lymphatic Vessels of the Thorax] Reference

To deal with these issues, scientists have developed a novel technology using ultrasound to provide leadless left ventricular stimulation from sites on the endocardium.    From Wordnik.com.  [MedPageToday.com - medical news plus CME for physicians] Reference

Inflammation of the endocardium, the lining membrane of the heart, may cause a thickening of it, and ossification of the valves of the heart, thus impairing its function.    From Wordnik.com.  [The People's Common Sense Medical Adviser in Plain English or, Medicine Simplified, 54th ed., One Million, Six Hundred and Fifty Thousand] Reference

Occasionally the fibrin may be seen lining one of the cavities of the heart, like a false endocardium, or else forming an additional coat to the aorta or other large vessels without producing much obstruction.    From Wordnik.com.  [Special Report on Diseases of the Horse] Reference

This application helps the clinician visualize the left ventricular wall and endocardium in technically difficult patients by opacifying the left ventricle with contrast, making it easier to evaluate wall motion.    From Wordnik.com. Reference

The sinoatrial node is situated on the anterior border of the opening of the superior vena cava; from its strands of fusiform fibers run under the endocardium of the wall of the atrium to the atrioventricular node.    From Wordnik.com.  [V. Angiology. 4b. The Heart] Reference