Definition of endocardium in English:



  • The thin, smooth membrane which lines the inside of the chambers of the heart and forms the surface of the valves.

    • ‘Only rarely does it involve the endocardium or cardiac valves.’
    • ‘The pericardium, cardiac valves, endocardium, and coronary arteries were normal.’
    • ‘The endocardium showed prominent endocardial fibroelastosis, particularly in sections obtained from the right side of the heart.’
    • ‘It is characterized by the growth of a thick meshwork of fibrous tissues within the endocardium and heart valves.’
    • ‘The immune system usually kills these organisms, but sometimes they survive and affect the heart valve or another section of the endocardium.’
    • ‘These modified cardiac fibers lie beneath the endocardium.’
    • ‘It has been known that muscle fibers in a heart are arranged in such a way that their orientation changes continuously from endocardium to epicardium of the free wall.’
    • ‘In this case, the diffraction became very weak when the beam moved from the endocardial surface into the left ventricle cavity, making it easier to identify the position of the endocardium.’
    • ‘To clearly define the beam position, contrast agent may help identify the endocardium by attenuating the x-ray beam in the cavity.’


Late 19th century modern Latin, from endo-‘within’ + Greek kardia ‘heart’.